diff --git a/lib/deprecatedlib.php b/lib/deprecatedlib.php
index bff47b7e1e3..8f694eabf32 100644
--- a/lib/deprecatedlib.php
+++ b/lib/deprecatedlib.php
@@ -32,20 +32,6 @@ defined('MOODLE_INTERNAL') || die();
 
 /* === Functions that needs to be kept longer in deprecated lib than normal time period === */
 
-/**
- * @deprecated since 2.7 use new events instead
- */
-function add_to_log() {
-    throw new coding_exception('add_to_log() has been removed, please rewrite your code to the new events API');
-}
-
-/**
- * @deprecated since 2.6
- */
-function events_trigger() {
-    throw new coding_exception('events_trigger() has been deprecated along with all Events 1 API in favour of Events 2 API.');
-}
-
 /**
  * List all core subsystems and their location
  *
@@ -249,381 +235,23 @@ function get_context_instance($contextlevel, $instance = 0, $strictness = IGNORE
 /* === End of long term deprecated api list === */
 
 /**
- * @deprecated since 2.7 - use new file picker instead
+ * @deprecated since 2.5 - do not use, the textrotate.js will work it out automatically
  */
-function clam_log_upload() {
-    throw new coding_exception('clam_log_upload() can not be used any more, please use file picker instead');
+function can_use_rotated_text() {
+    debugging('can_use_rotated_text() is removed. JS feature detection is used automatically.');
 }
 
 /**
- * @deprecated since 2.7 - use new file picker instead
+ * Returns system context or null if can not be created yet.
+ *
+ * @see context_system::instance()
+ * @deprecated since 2.2
+ * @param bool $cache use caching
+ * @return context system context (null if context table not created yet)
  */
-function clam_log_infected() {
-    throw new coding_exception('clam_log_infected() can not be used any more, please use file picker instead');
-}
-
-/**
- * @deprecated since 2.7 - use new file picker instead
- */
-function clam_change_log() {
-    throw new coding_exception('clam_change_log() can not be used any more, please use file picker instead');
-}
-
-/**
- * @deprecated since 2.7 - infected files are now deleted in file picker
- */
-function clam_replace_infected_file() {
-    throw new coding_exception('clam_replace_infected_file() can not be used any more, please use file picker instead');
-}
-
-/**
- * @deprecated since 2.7
- */
-function clam_handle_infected_file() {
-    throw new coding_exception('clam_handle_infected_file() can not be used any more, please use file picker instead');
-}
-
-/**
- * @deprecated since 2.7
- */
-function clam_scan_moodle_file() {
-    throw new coding_exception('clam_scan_moodle_file() can not be used any more, please use file picker instead');
-}
-
-
-/**
- * @deprecated since 2.7 PHP 5.4.x should be always compatible.
- */
-function password_compat_not_supported() {
-    throw new coding_exception('Do not use password_compat_not_supported() - bcrypt is now always available');
-}
-
-/**
- * @deprecated since 2.6
- */
-function session_get_instance() {
-    throw new coding_exception('session_get_instance() is removed, use \core\session\manager instead');
-}
-
-/**
- * @deprecated since 2.6
- */
-function session_is_legacy() {
-    throw new coding_exception('session_is_legacy() is removed, do not use any more');
-}
-
-/**
- * @deprecated since 2.6
- */
-function session_kill_all() {
-    throw new coding_exception('session_kill_all() is removed, use \core\session\manager::kill_all_sessions() instead');
-}
-
-/**
- * @deprecated since 2.6
- */
-function session_touch() {
-    throw new coding_exception('session_touch() is removed, use \core\session\manager::touch_session() instead');
-}
-
-/**
- * @deprecated since 2.6
- */
-function session_kill() {
-    throw new coding_exception('session_kill() is removed, use \core\session\manager::kill_session() instead');
-}
-
-/**
- * @deprecated since 2.6
- */
-function session_kill_user() {
-    throw new coding_exception('session_kill_user() is removed, use \core\session\manager::kill_user_sessions() instead');
-}
-
-/**
- * @deprecated since 2.6
- */
-function session_set_user() {
-    throw new coding_exception('session_set_user() is removed, use \core\session\manager::set_user() instead');
-}
-
-/**
- * @deprecated since 2.6
- */
-function session_is_loggedinas() {
-    throw new coding_exception('session_is_loggedinas() is removed, use \core\session\manager::is_loggedinas() instead');
-}
-
-/**
- * @deprecated since 2.6
- */
-function session_get_realuser() {
-    throw new coding_exception('session_get_realuser() is removed, use \core\session\manager::get_realuser() instead');
-}
-
-/**
- * @deprecated since 2.6
- */
-function session_loginas() {
-    throw new coding_exception('session_loginas() is removed, use \core\session\manager::loginas() instead');
-}
-
-/**
- * @deprecated since 2.6
- */
-function js_minify() {
-    throw new coding_exception('js_minify() is removed, use core_minify::js_files() or core_minify::js() instead.');
-}
-
-/**
- * @deprecated since 2.6
- */
-function css_minify_css() {
-    throw new coding_exception('css_minify_css() is removed, use core_minify::css_files() or core_minify::css() instead.');
-}
-
-// === Deprecated before 2.6.0 ===
-
-/**
- * @deprecated
- */
-function check_gd_version() {
-    throw new coding_exception('check_gd_version() is removed, GD extension is always available now');
-}
-
-/**
- * @deprecated
- */
-function update_login_count() {
-    throw new coding_exception('update_login_count() is removed, all calls need to be removed');
-}
-
-/**
- * @deprecated
- */
-function reset_login_count() {
-    throw new coding_exception('reset_login_count() is removed, all calls need to be removed');
-}
-
-/**
- * @deprecated
- */
-function update_log_display_entry() {
-
-    throw new coding_exception('The update_log_display_entry() is removed, please use db/log.php description file instead.');
-}
-
-/**
- * @deprecated use the text formatting in a standard way instead (https://moodledev.io/docs/apis/subsystems/output#output-functions)
- *             this was abused mostly for embedding of attachments
- */
-function filter_text() {
-    throw new coding_exception('filter_text() can not be used anymore, use format_text(), format_string() etc instead.');
-}
-
-/**
- * @deprecated Loginhttps is no longer supported
- */
-function httpsrequired() {
-    throw new coding_exception('httpsrequired() can not be used any more. Loginhttps is no longer supported.');
-}
-
-/**
- * @deprecated since 3.1 - replacement legacy file API methods can be found on the moodle_url class, for example:
- * The moodle_url::make_legacyfile_url() method can be used to generate a legacy course file url. To generate
- * course module file.php url the moodle_url::make_file_url() should be used.
- */
-function get_file_url() {
-    throw new coding_exception('get_file_url() can not be used anymore. Please use ' .
-        'moodle_url factory methods instead.');
-}
-
-/**
- * @deprecated use get_enrolled_users($context) instead.
- */
-function get_course_participants() {
-    throw new coding_exception('get_course_participants() can not be used any more, use get_enrolled_users() instead.');
-}
-
-/**
- * @deprecated use is_enrolled($context, $userid) instead.
- */
-function is_course_participant() {
-    throw new coding_exception('is_course_participant() can not be used any more, use is_enrolled() instead.');
-}
-
-/**
- * @deprecated
- */
-function get_recent_enrolments() {
-    throw new coding_exception('get_recent_enrolments() is removed as it returned inaccurate results.');
-}
-
-/**
- * @deprecated use clean_param($string, PARAM_FILE) instead.
- */
-function detect_munged_arguments() {
-    throw new coding_exception('detect_munged_arguments() can not be used any more, please use clean_param(,PARAM_FILE) instead.');
-}
-
-
-/**
- * @deprecated since 2.0 MDL-15919
- */
-function unzip_file() {
-    throw new coding_exception(__FUNCTION__ . '() is deprecated. '
-        . 'Please use the application/zip file_packer implementation instead.');
-}
-
-/**
- * @deprecated since 2.0 MDL-15919
- */
-function zip_files() {
-    throw new coding_exception(__FUNCTION__ . '() is deprecated. '
-        . 'Please use the application/zip file_packer implementation instead.');
-}
-
-/**
- * @deprecated use groups_get_all_groups() instead.
- */
-function mygroupid() {
-    throw new coding_exception('mygroupid() can not be used any more, please use groups_get_all_groups() instead.');
-}
-
-/**
- * @deprecated since Moodle 2.0 MDL-14617 - please do not use this function any more.
- */
-function groupmode() {
-    throw new coding_exception('groupmode() can not be used any more, please use groups_get_* instead.');
-}
-
-/**
- * @deprecated Since year 2006 - please do not use this function any more.
- */
-function set_current_group() {
-    throw new coding_exception('set_current_group() can not be used anymore, please use $SESSION->currentgroup[$courseid] instead');
-}
-
-/**
- * @deprecated Since year 2006 - please do not use this function any more.
- */
-function get_current_group() {
-    throw new coding_exception('get_current_group() can not be used any more, please use groups_get_* instead');
-}
-
-/**
- * @deprecated Since Moodle 2.8
- */
-function groups_filter_users_by_course_module_visible() {
-    throw new coding_exception('groups_filter_users_by_course_module_visible() is removed. ' .
-            'Replace with a call to \core_availability\info_module::filter_user_list(), ' .
-            'which does basically the same thing but includes other restrictions such ' .
-            'as profile restrictions.');
-}
-
-/**
- * @deprecated Since Moodle 2.8
- */
-function groups_course_module_visible() {
-    throw new coding_exception('groups_course_module_visible() is removed, use $cm->uservisible to decide whether the current
-        user can ' . 'access an activity.', DEBUG_DEVELOPER);
-}
-
-/**
- * @deprecated since 2.0
- */
-function error() {
-    throw new coding_exception('notlocalisederrormessage', 'error', $link, $message, 'error() is a removed, please call
-            throw new \moodle_exception() instead of error()');
-}
-
-
-/**
- * @deprecated use $PAGE->theme->name instead.
- */
-function current_theme() {
-    throw new coding_exception('current_theme() can not be used any more, please use $PAGE->theme->name instead');
-}
-
-/**
- * @deprecated
- */
-function formerr() {
-    throw new coding_exception('formerr() is removed. Please change your code to use $OUTPUT->error_text($string).');
-}
-
-/**
- * @deprecated use $OUTPUT->skip_link_target() in instead.
- */
-function skip_main_destination() {
-    throw new coding_exception('skip_main_destination() can not be used any more, please use $OUTPUT->skip_link_target() instead.');
-}
-
-/**
- * @deprecated use $OUTPUT->container() instead.
- */
-function print_container() {
-    throw new coding_exception('print_container() can not be used any more. Please use $OUTPUT->container() instead.');
-}
-
-/**
- * @deprecated use $OUTPUT->container_start() instead.
- */
-function print_container_start() {
-    throw new coding_exception('print_container_start() can not be used any more. Please use $OUTPUT->container_start() instead.');
-}
-
-/**
- * @deprecated use $OUTPUT->container_end() instead.
- */
-function print_container_end() {
-    throw new coding_exception('print_container_end() can not be used any more. Please use $OUTPUT->container_end() instead.');
-}
-
-/**
- * @deprecated since Moodle 2.0 MDL-19077 - use $OUTPUT->notification instead.
- */
-function notify() {
-    throw new coding_exception('notify() is removed, please use $OUTPUT->notification() instead');
-}
-
-/**
- * @deprecated use $OUTPUT->continue_button() instead.
- */
-function print_continue() {
-    throw new coding_exception('print_continue() can not be used any more. Please use $OUTPUT->continue_button() instead.');
-}
-
-/**
- * @deprecated use $PAGE methods instead.
- */
-function print_header() {
-
-    throw new coding_exception('print_header() can not be used any more. Please use $PAGE methods instead.');
-}
-
-/**
- * @deprecated use $PAGE methods instead.
- */
-function print_header_simple() {
-
-    throw new coding_exception('print_header_simple() can not be used any more. Please use $PAGE methods instead.');
-}
-
-/**
- * @deprecated use $OUTPUT->block() instead.
- */
-function print_side_block() {
-    throw new coding_exception('print_side_block() can not be used any more, please use $OUTPUT->block() instead.');
-}
-
-/**
- * @deprecated since Moodle 3.6
- */
-function print_textarea() {
-    throw new coding_exception(
-        'print_textarea() has been removed. Please use $OUTPUT->print_textarea() instead.'
-    );
+function get_system_context($cache = true) {
+    debugging('get_system_context() is deprecated, please use context_system::instance() instead.', DEBUG_DEVELOPER);
+    return context_system::instance(0, IGNORE_MISSING, $cache);
 }
 
 /**
@@ -683,2207 +311,6 @@ function print_arrow($direction='up', $strsort=null, $return=false) {
     }
 }
 
-/**
- * @deprecated since Moodle 2.0
- */
-function choose_from_menu() {
-    throw new coding_exception('choose_from_menu() is removed. Please change your code to use html_writer::select().');
-}
-
-/**
- * @deprecated use $OUTPUT->help_icon_scale($courseid, $scale) instead.
- */
-function print_scale_menu_helpbutton() {
-    throw new coding_exception('print_scale_menu_helpbutton() can not be used any more. '.
-        'Please use $OUTPUT->help_icon_scale($courseid, $scale) instead.');
-}
-
-/**
- * @deprecated use html_writer::checkbox() instead.
- */
-function print_checkbox() {
-    throw new coding_exception('print_checkbox() can not be used any more. Please use html_writer::checkbox() instead.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function update_module_button() {
-    throw new coding_exception('update_module_button() can not be used anymore. Activity modules should ' .
-        'not add the edit module button, the link is already available in the Administration block. Themes ' .
-        'can choose to display the link in the buttons row consistently for all module types.');
-}
-
-/**
- * @deprecated use $OUTPUT->navbar() instead
- */
-function print_navigation () {
-    throw new coding_exception('print_navigation() can not be used any more, please update use $OUTPUT->navbar() instead.');
-}
-
-/**
- * @deprecated Please use $PAGE->navabar methods instead.
- */
-function build_navigation() {
-    throw new coding_exception('build_navigation() can not be used any more, please use $PAGE->navbar methods instead.');
-}
-
-/**
- * @deprecated not relevant with global navigation in Moodle 2.x+
- */
-function navmenu() {
-    throw new coding_exception('navmenu() can not be used any more, it is no longer relevant with global navigation.');
-}
-
-/// CALENDAR MANAGEMENT  ////////////////////////////////////////////////////////////////
-
-
-/**
- * @deprecated please use calendar_event::create() instead.
- */
-function add_event() {
-    throw new coding_exception('add_event() can not be used any more, please use calendar_event::create() instead.');
-}
-
-/**
- * @deprecated please calendar_event->update() instead.
- */
-function update_event() {
-    throw new coding_exception('update_event() is removed, please use calendar_event->update() instead.');
-}
-
-/**
- * @deprecated please use calendar_event->delete() instead.
- */
-function delete_event() {
-    throw new coding_exception('delete_event() can not be used any more, please use '.
-        'calendar_event->delete() instead.');
-}
-
-/**
- * @deprecated please use calendar_event->toggle_visibility(false) instead.
- */
-function hide_event() {
-    throw new coding_exception('hide_event() can not be used any more, please use '.
-        'calendar_event->toggle_visibility(false) instead.');
-}
-
-/**
- * @deprecated please use calendar_event->toggle_visibility(true) instead.
- */
-function show_event() {
-    throw new coding_exception('show_event() can not be used any more, please use '.
-        'calendar_event->toggle_visibility(true) instead.');
-}
-
-/**
- * @deprecated since Moodle 2.2 use core_text::xxxx() instead.
- */
-function textlib_get_instance() {
-    throw new coding_exception('textlib_get_instance() can not be used any more, please use '.
-        'core_text::functioname() instead.');
-}
-
-/**
- * @deprecated since 2.4
- */
-function get_generic_section_name() {
-    throw new coding_exception('get_generic_section_name() is deprecated. Please use appropriate functionality '
-            .'from class core_courseformat\\base');
-}
-
-/**
- * @deprecated since 2.4
- */
-function get_all_sections() {
-    throw new coding_exception('get_all_sections() is removed. See phpdocs for this function');
-}
-
-/**
- * @deprecated since 2.4
- */
-function add_mod_to_section() {
-    throw new coding_exception('Function add_mod_to_section() is removed, please use course_add_cm_to_section()');
-}
-
-/**
- * @deprecated since 2.4
- */
-function get_all_mods() {
-    throw new coding_exception('Function get_all_mods() is removed. Use get_fast_modinfo() and get_module_types_names() instead. See phpdocs for details');
-}
-
-/**
- * @deprecated since 2.4
- */
-function get_course_section() {
-    throw new coding_exception('Function get_course_section() is removed. Please use course_create_sections_if_missing() and get_fast_modinfo() instead.');
-}
-
-/**
- * @deprecated since 2.4
- */
-function format_weeks_get_section_dates() {
-    throw new coding_exception('Function format_weeks_get_section_dates() is removed. It is not recommended to'.
-            ' use it outside of format_weeks plugin');
-}
-
-/**
- * @deprecated since 2.5
- */
-function get_print_section_cm_text() {
-    throw new coding_exception('Function get_print_section_cm_text() is removed. Please use '.
-            'cm_info::get_formatted_content() and cm_info::get_formatted_name()');
-}
-
-/**
- * @deprecated since 2.5
- */
-function print_section_add_menus() {
-    throw new coding_exception('Function print_section_add_menus() is removed. Please use course renderer '.
-            'function course_section_add_cm_control()');
-}
-
-/**
- * @deprecated since 2.5. Please use:
- */
-function make_editing_buttons() {
-    throw new coding_exception('Function make_editing_buttons() is removed, please see PHPdocs in '.
-            'lib/deprecatedlib.php on how to replace it');
-}
-
-/**
- * @deprecated since 2.5
- */
-function print_section() {
-    throw new coding_exception(
-        'Function print_section() is removed.' .
-        ' Please use core_courseformat\\output\\local\\content\\section' .
-        ' to render a course section instead.'
-    );
-}
-
-/**
- * @deprecated since 2.5
- */
-function print_overview() {
-    throw new coding_exception('Function print_overview() is removed. Use block course_overview to display this information');
-}
-
-/**
- * @deprecated since 2.5
- */
-function print_recent_activity() {
-    throw new coding_exception('Function print_recent_activity() is removed. It is not recommended to'.
-            ' use it outside of block_recent_activity');
-}
-
-/**
- * @deprecated since 2.5
- */
-function delete_course_module() {
-    throw new coding_exception('Function delete_course_module() is removed. Please use course_delete_module() instead.');
-}
-
-/**
- * @deprecated since 2.5
- */
-function update_category_button() {
-    throw new coding_exception('Function update_category_button() is removed. Pages to view '.
-            'and edit courses are now separate and no longer depend on editing mode.');
-}
-
-/**
- * @deprecated since 2.5
- */
-function make_categories_list() {
-    throw new coding_exception('Global function make_categories_list() is removed. Please use '.
-        'core_course_category::make_categories_list() and core_course_category::get_parents()');
-}
-
-/**
- * @deprecated since 2.5
- */
-function category_delete_move() {
-    throw new coding_exception('Function category_delete_move() is removed. Please use ' .
-        'core_course_category::delete_move() instead.');
-}
-
-/**
- * @deprecated since 2.5
- */
-function category_delete_full() {
-    throw new coding_exception('Function category_delete_full() is removed. Please use ' .
-        'core_course_category::delete_full() instead.');
-}
-
-/**
- * @deprecated since 2.5
- */
-function move_category() {
-    throw new coding_exception('Function move_category() is removed. Please use core_course_category::change_parent() instead.');
-}
-
-/**
- * @deprecated since 2.5
- */
-function course_category_hide() {
-    throw new coding_exception('Function course_category_hide() is removed. Please use core_course_category::hide() instead.');
-}
-
-/**
- * @deprecated since 2.5
- */
-function course_category_show() {
-    throw new coding_exception('Function course_category_show() is removed. Please use core_course_category::show() instead.');
-}
-
-/**
- * @deprecated since 2.5. Please use core_course_category::get($catid, IGNORE_MISSING) or
- *     core_course_category::get($catid, MUST_EXIST).
- */
-function get_course_category() {
-    throw new coding_exception('Function get_course_category() is removed. Please use core_course_category::get(), ' .
-        'see phpdocs for more details');
-}
-
-/**
- * @deprecated since 2.5
- */
-function create_course_category() {
-    throw new coding_exception('Function create_course_category() is removed. Please use core_course_category::create(), ' .
-        'see phpdocs for more details');
-}
-
-/**
- * @deprecated since 2.5. Please use core_course_category::get() and core_course_category::get_children()
- */
-function get_all_subcategories() {
-    throw new coding_exception('Function get_all_subcategories() is removed. Please use appropriate methods() '.
-        'of core_course_category class. See phpdocs for more details');
-}
-
-/**
- * @deprecated since 2.5. Please use core_course_category::get($parentid)->get_children().
- */
-function get_child_categories() {
-    throw new coding_exception('Function get_child_categories() is removed. Use core_course_category::get_children() or see ' .
-        'phpdocs for more details.');
-}
-
-/**
- * @deprecated since 2.5
- */
-function get_categories() {
-    throw new coding_exception('Function get_categories() is removed. Please use ' .
-            'appropriate functions from class core_course_category');
-}
-
-/**
-* @deprecated since 2.5
-*/
-function print_course_search() {
-    throw new coding_exception('Function print_course_search() is removed, please use course renderer');
-}
-
-/**
- * @deprecated since 2.5
- */
-function print_my_moodle() {
-    throw new coding_exception('Function print_my_moodle() is removed, please use course renderer ' .
-            'function frontpage_my_courses()');
-}
-
-/**
- * @deprecated since 2.5
- */
-function print_remote_course() {
-    throw new coding_exception('Function print_remote_course() is removed, please use course renderer');
-}
-
-/**
- * @deprecated since 2.5
- */
-function print_remote_host() {
-    throw new coding_exception('Function print_remote_host() is removed, please use course renderer');
-}
-
-/**
- * @deprecated since 2.5
- */
-function print_whole_category_list() {
-    throw new coding_exception('Function print_whole_category_list() is removed, please use course renderer');
-}
-
-/**
- * @deprecated since 2.5
- */
-function print_category_info() {
-    throw new coding_exception('Function print_category_info() is removed, please use course renderer');
-}
-
-/**
- * @deprecated since 2.5
- */
-function get_course_category_tree() {
-    throw new coding_exception('Function get_course_category_tree() is removed, please use course ' .
-            'renderer or core_course_category class, see function phpdocs for more info');
-}
-
-/**
- * @deprecated since 2.5
- */
-function print_courses() {
-    throw new coding_exception('Function print_courses() is removed, please use course renderer');
-}
-
-/**
- * @deprecated since 2.5
- */
-function print_course() {
-    throw new coding_exception('Function print_course() is removed, please use course renderer');
-}
-
-/**
- * @deprecated since 2.5
- */
-function get_category_courses_array() {
-    throw new coding_exception('Function get_category_courses_array() is removed, please use methods of ' .
-        'core_course_category class');
-}
-
-/**
- * @deprecated since 2.5
- */
-function get_category_courses_array_recursively() {
-    throw new coding_exception('Function get_category_courses_array_recursively() is removed, please use ' .
-        'methods of core_course_category class', DEBUG_DEVELOPER);
-}
-
-/**
- * @deprecated since Moodle 2.5 MDL-27814 - please do not use this function any more.
- */
-function blog_get_context_url() {
-    throw new coding_exception('Function  blog_get_context_url() is removed, getting params from context is not reliable for blogs.');
-}
-
-/**
- * @deprecated since 2.5
- */
-function get_courses_wmanagers() {
-    throw new coding_exception('Function get_courses_wmanagers() is removed, please use ' .
-        'core_course_category::get_courses()');
-}
-
-/**
- * @deprecated since 2.5
- */
-function convert_tree_to_html() {
-    throw new coding_exception('Function convert_tree_to_html() is removed. Consider using class tabtree and core_renderer::render_tabtree()');
-}
-
-/**
- * @deprecated since 2.5
- */
-function convert_tabrows_to_tree() {
-    throw new coding_exception('Function convert_tabrows_to_tree() is removed. Consider using class tabtree');
-}
-
-/**
- * @deprecated since 2.5 - do not use, the textrotate.js will work it out automatically
- */
-function can_use_rotated_text() {
-    debugging('can_use_rotated_text() is removed. JS feature detection is used automatically.');
-}
-
-/**
- * @deprecated since Moodle 2.2 MDL-35009 - please do not use this function any more.
- */
-function get_context_instance_by_id() {
-    throw new coding_exception('get_context_instance_by_id() is now removed, please use context::instance_by_id($id) instead.');
-}
-
-/**
- * Returns system context or null if can not be created yet.
- *
- * @see context_system::instance()
- * @deprecated since 2.2
- * @param bool $cache use caching
- * @return context system context (null if context table not created yet)
- */
-function get_system_context($cache = true) {
-    debugging('get_system_context() is deprecated, please use context_system::instance() instead.', DEBUG_DEVELOPER);
-    return context_system::instance(0, IGNORE_MISSING, $cache);
-}
-
-/**
- * @deprecated since 2.2, use $context->get_parent_context_ids() instead
- */
-function get_parent_contexts() {
-    throw new coding_exception('get_parent_contexts() is removed, please use $context->get_parent_context_ids() instead.');
-}
-
-/**
- * @deprecated since Moodle 2.2
- */
-function get_parent_contextid() {
-    throw new coding_exception('get_parent_contextid() is removed, please use $context->get_parent_context() instead.');
-}
-
-/**
- * @deprecated since 2.2
- */
-function get_child_contexts() {
-    throw new coding_exception('get_child_contexts() is removed, please use $context->get_child_contexts() instead.');
-}
-
-/**
- * @deprecated since 2.2
- */
-function create_contexts() {
-    throw new coding_exception('create_contexts() is removed, please use context_helper::create_instances() instead.');
-}
-
-/**
- * @deprecated since 2.2
- */
-function cleanup_contexts() {
-    throw new coding_exception('cleanup_contexts() is removed, please use context_helper::cleanup_instances() instead.');
-}
-
-/**
- * @deprecated since 2.2
- */
-function build_context_path() {
-    throw new coding_exception('build_context_path() is removed, please use context_helper::build_all_paths() instead.');
-}
-
-/**
- * @deprecated since 2.2
- */
-function rebuild_contexts() {
-    throw new coding_exception('rebuild_contexts() is removed, please use $context->reset_paths(true) instead.');
-}
-
-/**
- * @deprecated since Moodle 2.2
- */
-function preload_course_contexts() {
-    throw new coding_exception('preload_course_contexts() is removed, please use context_helper::preload_course() instead.');
-}
-
-/**
- * @deprecated since Moodle 2.2
- */
-function context_moved() {
-    throw new coding_exception('context_moved() is removed, please use context::update_moved() instead.');
-}
-
-/**
- * @deprecated since 2.2
- */
-function fetch_context_capabilities() {
-    throw new coding_exception('fetch_context_capabilities() is removed, please use $context->get_capabilities() instead.');
-}
-
-/**
- * @deprecated since 2.2
- */
-function context_instance_preload() {
-    throw new coding_exception('context_instance_preload() is removed, please use context_helper::preload_from_record() instead.');
-}
-
-/**
- * @deprecated since 2.2
- */
-function get_contextlevel_name() {
-    throw new coding_exception('get_contextlevel_name() is removed, please use context_helper::get_level_name() instead.');
-}
-
-/**
- * @deprecated since 2.2
- */
-function print_context_name() {
-    throw new coding_exception('print_context_name() is removed, please use $context->get_context_name() instead.');
-}
-
-/**
- * @deprecated since 2.2, use $context->mark_dirty() instead
- */
-function mark_context_dirty() {
-    throw new coding_exception('mark_context_dirty() is removed, please use $context->mark_dirty() instead.');
-}
-
-/**
- * @deprecated since Moodle 2.2
- */
-function delete_context() {
-    throw new coding_exception('delete_context() is removed, please use context_helper::delete_instance() ' .
-            'or $context->delete_content() instead.');
-}
-
-/**
- * @deprecated since 2.2
- */
-function get_context_url() {
-    throw new coding_exception('get_context_url() is removed, please use $context->get_url() instead.');
-}
-
-/**
- * @deprecated since 2.2
- */
-function get_course_context() {
-    throw new coding_exception('get_course_context() is removed, please use $context->get_course_context(true) instead.');
-}
-
-/**
- * @deprecated since 2.2
- */
-function get_user_courses_bycap() {
-    throw new coding_exception('get_user_courses_bycap() is removed, please use enrol_get_users_courses() instead.');
-}
-
-/**
- * @deprecated since Moodle 2.2
- */
-function get_role_context_caps() {
-    throw new coding_exception('get_role_context_caps() is removed, it is really slow. Don\'t use it.');
-}
-
-/**
- * @deprecated since 2.2
- */
-function get_courseid_from_context() {
-    throw new coding_exception('get_courseid_from_context() is removed, please use $context->get_course_context(false) instead.');
-}
-
-/**
- * @deprecated since 2.2
- */
-function context_instance_preload_sql() {
-    throw new coding_exception('context_instance_preload_sql() is removed, please use context_helper::get_preload_record_columns_sql() instead.');
-}
-
-/**
- * @deprecated since 2.2
- */
-function get_related_contexts_string() {
-    throw new coding_exception('get_related_contexts_string() is removed, please use $context->get_parent_context_ids(true) instead.');
-}
-
-/**
- * @deprecated since 2.6
- */
-function get_plugin_list_with_file() {
-    throw new coding_exception('get_plugin_list_with_file() is removed, please use core_component::get_plugin_list_with_file() instead.');
-}
-
-/**
- * @deprecated since 2.6
- */
-function check_browser_operating_system() {
-    throw new coding_exception('check_browser_operating_system is removed, please update your code to use core_useragent instead.');
-}
-
-/**
- * @deprecated since 2.6
- */
-function check_browser_version() {
-    throw new coding_exception('check_browser_version is removed, please update your code to use core_useragent instead.');
-}
-
-/**
- * @deprecated since 2.6
- */
-function get_device_type() {
-    throw new coding_exception('get_device_type is removed, please update your code to use core_useragent instead.');
-}
-
-/**
- * @deprecated since 2.6
- */
-function get_device_type_list() {
-    throw new coding_exception('get_device_type_list is removed, please update your code to use core_useragent instead.');
-}
-
-/**
- * @deprecated since 2.6
- */
-function get_selected_theme_for_device_type() {
-    throw new coding_exception('get_selected_theme_for_device_type is removed, please update your code to use core_useragent instead.');
-}
-
-/**
- * @deprecated since 2.6
- */
-function get_device_cfg_var_name() {
-    throw new coding_exception('get_device_cfg_var_name is removed, please update your code to use core_useragent instead.');
-}
-
-/**
- * @deprecated since 2.6
- */
-function set_user_device_type() {
-    throw new coding_exception('set_user_device_type is removed, please update your code to use core_useragent instead.');
-}
-
-/**
- * @deprecated since 2.6
- */
-function get_user_device_type() {
-    throw new coding_exception('get_user_device_type is removed, please update your code to use core_useragent instead.');
-}
-
-/**
- * @deprecated since 2.6
- */
-function get_browser_version_classes() {
-    throw new coding_exception('get_browser_version_classes is removed, please update your code to use core_useragent instead.');
-}
-
-/**
- * @deprecated since Moodle 2.6
- */
-function generate_email_supportuser() {
-    throw new coding_exception('generate_email_supportuser is removed, please use core_user::get_support_user');
-}
-
-/**
- * @deprecated since Moodle 2.6
- */
-function badges_get_issued_badge_info() {
-    throw new coding_exception('Function badges_get_issued_badge_info() is removed. Please use core_badges_assertion class and methods to generate badge assertion.');
-}
-
-/**
- * @deprecated since 2.6
- */
-function can_use_html_editor() {
-    throw new coding_exception('can_use_html_editor is removed, please update your code to assume it returns true.');
-}
-
-
-/**
- * @deprecated since Moodle 2.7, use {@link user_count_login_failures()} instead.
- */
-function count_login_failures() {
-    throw new coding_exception('count_login_failures() can not be used any more, please use user_count_login_failures().');
-}
-
-/**
- * @deprecated since 2.7 MDL-33099/MDL-44088 - please do not use this function any more.
- */
-function ajaxenabled() {
-    throw new coding_exception('ajaxenabled() can not be used anymore. Update your code to work with JS at all times.');
-}
-
-/**
- * @deprecated Since Moodle 2.7 MDL-44070
- */
-function coursemodule_visible_for_user() {
-    throw new coding_exception('coursemodule_visible_for_user() can not be used any more,
-            please use \core_availability\info_module::is_user_visible()');
-}
-
-/**
- * @deprecated since Moodle 2.8 MDL-36014, MDL-35618 this functionality is removed
- */
-function enrol_cohort_get_cohorts() {
-    throw new coding_exception('Function enrol_cohort_get_cohorts() is removed, use '.
-        'cohort_get_available_cohorts() instead');
-}
-
-/**
- * @deprecated since Moodle 2.8 MDL-36014 please use cohort_can_view_cohort()
- */
-function enrol_cohort_can_view_cohort() {
-    throw new coding_exception('Function enrol_cohort_can_view_cohort() is removed, use cohort_can_view_cohort() instead');
-}
-
-/**
- * @deprecated since Moodle 2.8 MDL-36014 use cohort_get_available_cohorts() instead
- */
-function cohort_get_visible_list() {
-    throw new coding_exception('Function cohort_get_visible_list() is removed. Please use function cohort_get_available_cohorts() ".
-        "that correctly checks capabilities.');
-}
-
-/**
- * @deprecated since Moodle 2.8 MDL-35618 this functionality is removed
- */
-function enrol_cohort_enrol_all_users() {
-    throw new coding_exception('enrol_cohort_enrol_all_users() is removed. This functionality is moved to enrol_manual.');
-}
-
-/**
- * @deprecated since Moodle 2.8 MDL-35618 this functionality is removed
- */
-function enrol_cohort_search_cohorts() {
-    throw new coding_exception('enrol_cohort_search_cohorts() is removed. This functionality is moved to enrol_manual.');
-}
-
-/* === Apis deprecated in since Moodle 2.9 === */
-
-/**
- * @deprecated since Moodle 2.9 MDL-49371 - please do not use this function any more.
- */
-function message_current_user_is_involved() {
-    throw new coding_exception('message_current_user_is_involved() can not be used any more.');
-}
-
-/**
- * @deprecated since Moodle 2.9 MDL-45898 - please do not use this function any more.
- */
-function profile_display_badges() {
-    throw new coding_exception('profile_display_badges() can not be used any more.');
-}
-
-/**
- * @deprecated since Moodle 2.9 MDL-45774 - Please do not use this function any more.
- */
-function useredit_shared_definition_preferences() {
-    throw new coding_exception('useredit_shared_definition_preferences() can not be used any more.');
-}
-
-
-/**
- * @deprecated since Moodle 2.9
- */
-function calendar_normalize_tz() {
-    throw new coding_exception('calendar_normalize_tz() can not be used any more, please use core_date::normalise_timezone() instead.');
-}
-
-/**
- * @deprecated since Moodle 2.9
- */
-function get_user_timezone_offset() {
-    throw new coding_exception('get_user_timezone_offset() can not be used any more, please use standard PHP DateTimeZone class instead');
-
-}
-
-/**
- * @deprecated since Moodle 2.9
- */
-function get_timezone_offset() {
-    throw new coding_exception('get_timezone_offset() can not be used any more, please use standard PHP DateTimeZone class instead');
-}
-
-/**
- * @deprecated since Moodle 2.9
- */
-function get_list_of_timezones() {
-    throw new coding_exception('get_list_of_timezones() can not be used any more, please use core_date::get_list_of_timezones() instead');
-}
-
-/**
- * @deprecated since Moodle 2.9
- */
-function update_timezone_records() {
-    throw new coding_exception('update_timezone_records() can not be used any more, please use standard PHP DateTime class instead');
-}
-
-/**
- * @deprecated since Moodle 2.9
- */
-function calculate_user_dst_table() {
-    throw new coding_exception('calculate_user_dst_table() can not be used any more, please use standard PHP DateTime class instead');
-}
-
-/**
- * @deprecated since Moodle 2.9
- */
-function dst_changes_for_year() {
-    throw new coding_exception('dst_changes_for_year() can not be used any more, please use standard DateTime class instead');
-}
-
-/**
- * @deprecated since Moodle 2.9
- */
-function get_timezone_record() {
-    throw new coding_exception('get_timezone_record() can not be used any more, please use standard PHP DateTime class instead');
-}
-
-/* === Apis deprecated since Moodle 3.0 === */
-/**
- * @deprecated since Moodle 3.0 MDL-49360 - please do not use this function any more.
- */
-function get_referer() {
-    throw new coding_exception('get_referer() can not be used any more. Please use get_local_referer() instead.');
-}
-
-/**
- * @deprecated since Moodle 3.0 use \core_useragent::is_web_crawler instead.
- */
-function is_web_crawler() {
-    throw new coding_exception('is_web_crawler() can not be used any more. Please use core_useragent::is_web_crawler() instead.');
-}
-
-/**
- * @deprecated since Moodle 3.0 MDL-50287 - please do not use this function any more.
- */
-function completion_cron() {
-    throw new coding_exception('completion_cron() can not be used any more. Functionality has been moved to scheduled tasks.');
-}
-
-/**
- * @deprecated since 3.0
- */
-function coursetag_get_tags() {
-    throw new coding_exception('Function coursetag_get_tags() can not be used any more. ' .
-            'Userid is no longer used for tagging courses.');
-}
-
-/**
- * @deprecated since 3.0
- */
-function coursetag_get_all_tags() {
-    throw new coding_exception('Function coursetag_get_all_tags() can not be used any more. Userid is no ' .
-        'longer used for tagging courses.');
-}
-
-/**
- * @deprecated since 3.0
- */
-function coursetag_get_jscript() {
-    throw new coding_exception('Function coursetag_get_jscript() can not be used any more and is obsolete.');
-}
-
-/**
- * @deprecated since 3.0
- */
-function coursetag_get_jscript_links() {
-    throw new coding_exception('Function coursetag_get_jscript_links() can not be used any more and is obsolete.');
-}
-
-/**
- * @deprecated since 3.0
- */
-function coursetag_get_records() {
-    throw new coding_exception('Function coursetag_get_records() can not be used any more. ' .
-            'Userid is no longer used for tagging courses.');
-}
-
-/**
- * @deprecated since 3.0
- */
-function coursetag_store_keywords() {
-    throw new coding_exception('Function coursetag_store_keywords() can not be used any more. ' .
-            'Userid is no longer used for tagging courses.');
-}
-
-/**
- * @deprecated since 3.0
- */
-function coursetag_delete_keyword() {
-    throw new coding_exception('Function coursetag_delete_keyword() can not be used any more. ' .
-            'Userid is no longer used for tagging courses.');
-}
-
-/**
- * @deprecated since 3.0
- */
-function coursetag_get_tagged_courses() {
-    throw new coding_exception('Function coursetag_get_tagged_courses() can not be used any more. ' .
-            'Userid is no longer used for tagging courses.');
-}
-
-/**
- * @deprecated since 3.0
- */
-function coursetag_delete_course_tags() {
-    throw new coding_exception('Function coursetag_delete_course_tags() is deprecated. ' .
-            'Use core_tag_tag::remove_all_item_tags().');
-}
-
-/**
- * @deprecated since 3.1. Use core_tag_tag::get($tagid)->update() instead
- */
-function tag_type_set() {
-    throw new coding_exception('tag_type_set() can not be used anymore. Please use ' .
-        'core_tag_tag::get($tagid)->update().');
-}
-
-/**
- * @deprecated since 3.1. Use core_tag_tag::get($tagid)->update() instead
- */
-function tag_description_set() {
-    throw new coding_exception('tag_description_set() can not be used anymore. Please use ' .
-        'core_tag_tag::get($tagid)->update().');
-}
-
-/**
- * @deprecated since 3.1. Use core_tag_tag::get_item_tags() instead
- */
-function tag_get_tags() {
-    throw new coding_exception('tag_get_tags() can not be used anymore. Please use ' .
-        'core_tag_tag::get_item_tags().');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_get_tags_array() {
-    throw new coding_exception('tag_get_tags_array() can not be used anymore. Please use ' .
-        'core_tag_tag::get_item_tags_array().');
-}
-
-/**
- * @deprecated since 3.1. Use core_tag_tag::get_item_tags_array() or $OUTPUT->tag_list(core_tag_tag::get_item_tags())
- */
-function tag_get_tags_csv() {
-    throw new coding_exception('tag_get_tags_csv() can not be used anymore. Please use ' .
-        'core_tag_tag::get_item_tags_array() or $OUTPUT->tag_list(core_tag_tag::get_item_tags()).');
-}
-
-/**
- * @deprecated since 3.1. Use core_tag_tag::get_item_tags() instead
- */
-function tag_get_tags_ids() {
-    throw new coding_exception('tag_get_tags_ids() can not be used anymore. Please consider using ' .
-        'core_tag_tag::get_item_tags() or similar methods.');
-}
-
-/**
- * @deprecated since 3.1. Use core_tag_tag::get_by_name() or core_tag_tag::get_by_name_bulk()
- */
-function tag_get_id() {
-    throw new coding_exception('tag_get_id() can not be used anymore. Please use ' .
-        'core_tag_tag::get_by_name() or core_tag_tag::get_by_name_bulk()');
-}
-
-/**
- * @deprecated since 3.1. Use core_tag_tag::get($tagid)->update() instead
- */
-function tag_rename() {
-    throw new coding_exception('tag_rename() can not be used anymore. Please use ' .
-        'core_tag_tag::get($tagid)->update()');
-}
-
-/**
- * @deprecated since 3.1. Use core_tag_tag::remove_item_tag() instead
- */
-function tag_delete_instance() {
-    throw new coding_exception('tag_delete_instance() can not be used anymore. Please use ' .
-        'core_tag_tag::remove_item_tag()');
-}
-
-/**
- * @deprecated since 3.1. Use core_tag_tag::get_by_name()->get_tagged_items() instead
- */
-function tag_find_records() {
-    throw new coding_exception('tag_find_records() can not be used anymore. Please use ' .
-        'core_tag_tag::get_by_name()->get_tagged_items()');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_add() {
-    throw new coding_exception('tag_add() can not be used anymore. You can use ' .
-        'core_tag_tag::create_if_missing(), however it should not be necessary since tags are ' .
-        'created automatically when assigned to items');
-}
-
-/**
- * @deprecated since 3.1. Use core_tag_tag::set_item_tags() or core_tag_tag::add_item_tag() instead
- */
-function tag_assign() {
-    throw new coding_exception('tag_assign() can not be used anymore. Please use ' .
-        'core_tag_tag::set_item_tags() or core_tag_tag::add_item_tag() instead. Tag instance ' .
-        'ordering should not be set manually');
-}
-
-/**
- * @deprecated since 3.1. Use core_tag_tag::get($tagid)->count_tagged_items() instead
- */
-function tag_record_count() {
-    throw new coding_exception('tag_record_count() can not be used anymore. Please use ' .
-        'core_tag_tag::get($tagid)->count_tagged_items().');
-}
-
-/**
- * @deprecated since 3.1. Use core_tag_tag::get($tagid)->is_item_tagged_with() instead
- */
-function tag_record_tagged_with() {
-    throw new coding_exception('tag_record_tagged_with() can not be used anymore. Please use ' .
-        'core_tag_tag::get($tagid)->is_item_tagged_with().');
-}
-
-/**
- * @deprecated since 3.1. Use core_tag_tag::get($tagid)->flag() instead
- */
-function tag_set_flag() {
-    throw new coding_exception('tag_set_flag() can not be used anymore. Please use ' .
-        'core_tag_tag::get($tagid)->flag()');
-}
-
-/**
- * @deprecated since 3.1. Use core_tag_tag::get($tagid)->reset_flag() instead
- */
-function tag_unset_flag() {
-    throw new coding_exception('tag_unset_flag() can not be used anymore. Please use ' .
-        'core_tag_tag::get($tagid)->reset_flag()');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_print_cloud() {
-    throw new coding_exception('tag_print_cloud() can not be used anymore. Please use ' .
-        'core_tag_collection::get_tag_cloud(), templateable core_tag\output\tagcloud and ' .
-        'template core_tag/tagcloud.');
-}
-
-/**
- * @deprecated since 3.0
- */
-function tag_autocomplete() {
-    throw new coding_exception('tag_autocomplete() can not be used anymore. New form ' .
-        'element "tags" does proper autocomplete.');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_print_description_box() {
-    throw new coding_exception('tag_print_description_box() can not be used anymore. ' .
-        'See core_tag_renderer for similar code');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_print_management_box() {
-    throw new coding_exception('tag_print_management_box() can not be used anymore. ' .
-        'See core_tag_renderer for similar code');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_print_search_box() {
-    throw new coding_exception('tag_print_search_box() can not be used anymore. ' .
-        'See core_tag_renderer for similar code');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_print_search_results() {
-    throw new coding_exception('tag_print_search_results() can not be used anymore. ' .
-        'In /tag/search.php the search results are printed using the core_tag/tagcloud template.');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_print_tagged_users_table() {
-    throw new coding_exception('tag_print_tagged_users_table() can not be used anymore. ' .
-        'See core_user_renderer for similar code');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_print_user_box() {
-    throw new coding_exception('tag_print_user_box() can not be used anymore. ' .
-        'See core_user_renderer for similar code');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_print_user_list() {
-    throw new coding_exception('tag_print_user_list() can not be used anymore. ' .
-        'See core_user_renderer for similar code');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_display_name() {
-    throw new coding_exception('tag_display_name() can not be used anymore. Please use ' .
-        'core_tag_tag::make_display_name().');
-
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_normalize() {
-    throw new coding_exception('tag_normalize() can not be used anymore. Please use ' .
-        'core_tag_tag::normalize().');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_get_related_tags_csv() {
-    throw new coding_exception('tag_get_related_tags_csv() can not be used anymore. Please ' .
-        'consider looping through array or using $OUTPUT->tag_list(core_tag_tag::get_item_tags()).');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_set() {
-    throw new coding_exception('tag_set() can not be used anymore. Please use ' .
-        'core_tag_tag::set_item_tags().');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_set_add() {
-    throw new coding_exception('tag_set_add() can not be used anymore. Please use ' .
-        'core_tag_tag::add_item_tag().');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_set_delete() {
-    throw new coding_exception('tag_set_delete() can not be used anymore. Please use ' .
-        'core_tag_tag::remove_item_tag().');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_get() {
-    throw new coding_exception('tag_get() can not be used anymore. Please use ' .
-        'core_tag_tag::get() or core_tag_tag::get_by_name().');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_get_related_tags() {
-    throw new coding_exception('tag_get_related_tags() can not be used anymore. Please use ' .
-        'core_tag_tag::get_correlated_tags(), core_tag_tag::get_related_tags() or ' .
-        'core_tag_tag::get_manual_related_tags().');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_delete() {
-    throw new coding_exception('tag_delete() can not be used anymore. Please use ' .
-        'core_tag_tag::delete_tags().');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_delete_instances() {
-    throw new coding_exception('tag_delete_instances() can not be used anymore. Please use ' .
-        'core_tag_tag::delete_instances().');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_cleanup() {
-    throw new coding_exception('tag_cleanup() can not be used anymore. Please use ' .
-        '\core\task\tag_cron_task::cleanup().');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_bulk_delete_instances() {
-    throw new coding_exception('tag_bulk_delete_instances() can not be used anymore. Please use ' .
-        '\core\task\tag_cron_task::bulk_delete_instances().');
-
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_compute_correlations() {
-    throw new coding_exception('tag_compute_correlations() can not be used anymore. Please use ' .
-        'use \core\task\tag_cron_task::compute_correlations().');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_process_computed_correlation() {
-    throw new coding_exception('tag_process_computed_correlation() can not be used anymore. Please use ' .
-        'use \core\task\tag_cron_task::process_computed_correlation().');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_cron() {
-    throw new coding_exception('tag_cron() can not be used anymore. Please use ' .
-        'use \core\task\tag_cron_task::execute().');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_find_tags() {
-    throw new coding_exception('tag_find_tags() can not be used anymore.');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_get_name() {
-    throw new coding_exception('tag_get_name() can not be used anymore.');
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_get_correlated() {
-    throw new coding_exception('tag_get_correlated() can not be used anymore. Please use ' .
-        'use core_tag_tag::get_correlated_tags().');
-
-}
-
-/**
- * @deprecated since 3.1
- */
-function tag_cloud_sort() {
-    throw new coding_exception('tag_cloud_sort() can not be used anymore. Similar method can ' .
-        'be found in core_tag_collection::cloud_sort().');
-}
-
-/**
- * @deprecated since Moodle 3.1
- */
-function events_load_def() {
-    throw new coding_exception('events_load_def() has been deprecated along with all Events 1 API in favour of Events 2 API.');
-
-}
-
-/**
- * @deprecated since Moodle 3.1
- */
-function events_queue_handler() {
-    throw new coding_exception('events_queue_handler() has been deprecated along with all Events 1 API in favour of Events 2 API.');
-}
-
-/**
- * @deprecated since Moodle 3.1
- */
-function events_dispatch() {
-    throw new coding_exception('events_dispatch() has been deprecated along with all Events 1 API in favour of Events 2 API.');
-}
-
-/**
- * @deprecated since Moodle 3.1
- */
-function events_process_queued_handler() {
-    throw new coding_exception(
-        'events_process_queued_handler() has been deprecated along with all Events 1 API in favour of Events 2 API.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.1
- */
-function events_update_definition() {
-    throw new coding_exception(
-        'events_update_definition has been deprecated along with all Events 1 API in favour of Events 2 API.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.1
- */
-function events_cron() {
-    throw new coding_exception('events_cron() has been deprecated along with all Events 1 API in favour of Events 2 API.');
-}
-
-/**
- * @deprecated since Moodle 3.1
- */
-function events_trigger_legacy() {
-    throw new coding_exception('events_trigger_legacy() has been deprecated along with all Events 1 API in favour of Events 2 API.');
-}
-
-/**
- * @deprecated since Moodle 3.1
- */
-function events_is_registered() {
-    throw new coding_exception('events_is_registered() has been deprecated along with all Events 1 API in favour of Events 2 API.');
-}
-
-/**
- * @deprecated since Moodle 3.1
- */
-function events_pending_count() {
-    throw new coding_exception('events_pending_count() has been deprecated along with all Events 1 API in favour of Events 2 API.');
-}
-
-/**
- * @deprecated since Moodle 3.0 - this is a part of clamav plugin now.
- */
-function clam_message_admins() {
-    throw new coding_exception('clam_message_admins() can not be used anymore. Please use ' .
-        'message_admins() method of \antivirus_clamav\scanner class.');
-}
-
-/**
- * @deprecated since Moodle 3.0 - this is a part of clamav plugin now.
- */
-function get_clam_error_code() {
-    throw new coding_exception('get_clam_error_code() can not be used anymore. Please use ' .
-        'get_clam_error_code() method of \antivirus_clamav\scanner class.');
-}
-
-/**
- * @deprecated since 3.1
- */
-function course_get_cm_rename_action() {
-    throw new coding_exception('course_get_cm_rename_action() can not be used anymore. Please use ' .
-        'inplace_editable https://docs.moodle.org/dev/Inplace_editable.');
-
-}
-
-/**
- * @deprecated since Moodle 3.1
- */
-function course_scale_used() {
-    throw new coding_exception('course_scale_used() can not be used anymore. Plugins can ' .
-        'implement <modname>_scale_used_anywhere, all implementations of <modname>_scale_used are now ignored');
-}
-
-/**
- * @deprecated since Moodle 3.1
- */
-function site_scale_used() {
-    throw new coding_exception('site_scale_used() can not be used anymore. Plugins can implement ' .
-        '<modname>_scale_used_anywhere, all implementations of <modname>_scale_used are now ignored');
-}
-
-/**
- * @deprecated since Moodle 3.1. Use external_api::external_function_info().
- */
-function external_function_info() {
-    throw new coding_exception('external_function_info() can not be used any'.
-        'more. Please use external_api::external_function_info() instead.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- * @see csv_import_reader::load_csv_content()
- */
-function get_records_csv() {
-    throw new coding_exception('get_records_csv() can not be used anymore. Please use ' .
-        'lib/csvlib.class.php csv_import_reader() instead.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function put_records_csv() {
-    throw new coding_exception(__FUNCTION__ . '() has been removed, please use \core\dataformat::download_data() instead');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function css_is_colour() {
-    throw new coding_exception('css_is_colour() can not be used anymore.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function css_is_width() {
-    throw new coding_exception('css_is_width() can not be used anymore.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function css_sort_by_count() {
-    throw new coding_exception('css_sort_by_count() can not be used anymore.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function message_get_course_contexts() {
-    throw new coding_exception('message_get_course_contexts() can not be used anymore.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function message_remove_url_params() {
-    throw new coding_exception('message_remove_url_params() can not be used anymore.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function message_count_messages() {
-    throw new coding_exception('message_count_messages() can not be used anymore.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function message_count_blocked_users() {
-    throw new coding_exception('message_count_blocked_users() can not be used anymore. Please use ' .
-        '\core_message\api::count_blocked_users() instead.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function message_contact_link() {
-    throw new coding_exception('message_contact_link() can not be used anymore.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function message_get_recent_notifications() {
-    throw new coding_exception('message_get_recent_notifications() can not be used anymore.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function message_history_link() {
-    throw new coding_exception('message_history_link() can not be used anymore.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function message_search() {
-    throw new coding_exception('message_search() can not be used anymore.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function message_shorten_message() {
-    throw new coding_exception('message_shorten_message() can not be used anymore.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function message_get_fragment() {
-    throw new coding_exception('message_get_fragment() can not be used anymore.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function message_get_history() {
-    throw new coding_exception('message_get_history() can not be used anymore.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function message_get_contact_add_remove_link() {
-    throw new coding_exception('message_get_contact_add_remove_link() can not be used anymore.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function message_get_contact_block_link() {
-    throw new coding_exception('message_get_contact_block_link() can not be used anymore.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function message_mark_messages_read() {
-    throw new coding_exception('message_mark_messages_read() can not be used anymore. Please use ' .
-        '\core_message\api::mark_all_messages_as_read() instead.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function message_can_post_message() {
-    throw new coding_exception('message_can_post_message() can not be used anymore. Please use ' .
-        '\core_message\api::can_send_message() instead.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function message_is_user_non_contact_blocked() {
-    throw new coding_exception('message_is_user_non_contact_blocked() can not be used anymore. Please use ' .
-        '\core_message\api::is_user_non_contact_blocked() instead.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function message_is_user_blocked() {
-    throw new coding_exception('message_is_user_blocked() can not be used anymore. Please use ' .
-        '\core_message\api::is_user_blocked() instead.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function print_log() {
-    throw new coding_exception('print_log() can not be used anymore. Please use the ' .
-        'report_log framework instead.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function print_mnet_log() {
-    throw new coding_exception('print_mnet_log() can not be used anymore. Please use the ' .
-        'report_log framework instead.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function print_log_csv() {
-    throw new coding_exception('print_log_csv() can not be used anymore. Please use the ' .
-        'report_log framework instead.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function print_log_xls() {
-    throw new coding_exception('print_log_xls() can not be used anymore. Please use the ' .
-        'report_log framework instead.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function print_log_ods() {
-    throw new coding_exception('print_log_ods() can not be used anymore. Please use the ' .
-        'report_log framework instead.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function build_logs_array() {
-    throw new coding_exception('build_logs_array() can not be used anymore. Please use the ' .
-        'report_log framework instead.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function get_logs_usercourse() {
-    throw new coding_exception('get_logs_usercourse() can not be used anymore. Please use the ' .
-        'report_log framework instead.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function get_logs_userday() {
-    throw new coding_exception('get_logs_userday() can not be used anymore. Please use the ' .
-        'report_log framework instead.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function get_logs() {
-    throw new coding_exception('get_logs() can not be used anymore. Please use the ' .
-        'report_log framework instead.');
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function prevent_form_autofill_password() {
-    throw new coding_exception('prevent_form_autofill_password() can not be used anymore.');
-}
-
-/**
- * @deprecated since Moodle 3.3 MDL-57370
- */
-function message_get_recent_conversations($userorid, $limitfrom = 0, $limitto = 100) {
-    throw new coding_exception('message_get_recent_conversations() can not be used any more. ' .
-        'Please use \core_message\api::get_conversations() instead.', DEBUG_DEVELOPER);
-}
-
-/**
- * @deprecated since Moodle 3.2
- */
-function calendar_preferences_button() {
-    throw new coding_exception('calendar_preferences_button() can not be used anymore. The calendar ' .
-        'preferences are now linked to the user preferences page.');
-}
-
-/**
- * @deprecated since 3.3
- */
-function calendar_wday_name() {
-    throw new coding_exception('Function calendar_wday_name() is removed and no longer used in core.');
-}
-
-/**
- * @deprecated since 3.3
- */
-function calendar_get_block_upcoming() {
-    throw new coding_exception('Function calendar_get_block_upcoming() is removed,' .
-        'Please see block_calendar_upcoming::get_content() for the correct API usage.');
-}
-
-/**
- * @deprecated since 3.3
- */
-function calendar_print_month_selector() {
-    throw new coding_exception('Function calendar_print_month_selector() is removed and can no longer used in core.');
-}
-
-/**
- * @deprecated since 3.3
- */
-function calendar_cron() {
-    throw new coding_exception('Function calendar_cron() is removed. Please use the core\task\calendar_cron_task instead.');
-}
-
-/**
- * @deprecated since Moodle 3.4 and removed immediately. MDL-49398.
- */
-function load_course_context() {
-    throw new coding_exception('load_course_context() is removed. Do not use private functions or data structures.');
-}
-
-/**
- * @deprecated since Moodle 3.4 and removed immediately. MDL-49398.
- */
-function load_role_access_by_context() {
-    throw new coding_exception('load_role_access_by_context() is removed. Do not use private functions or data structures.');
-}
-
-/**
- * @deprecated since Moodle 3.4 and removed immediately. MDL-49398.
- */
-function dedupe_user_access() {
-    throw new coding_exception('dedupe_user_access() is removed. Do not use private functions or data structures.');
-}
-
-/**
- * @deprecated since Moodle 3.4. MDL-49398.
- */
-function get_user_access_sitewide() {
-    throw new coding_exception('get_user_access_sitewide() is removed. Do not use private functions or data structures.');
-}
-
-/**
- * @deprecated since Moodle 3.4. MDL-59333
- */
-function calendar_get_mini() {
-    throw new coding_exception('calendar_get_mini() has been removed. Please update your code to use calendar_get_view.');
-}
-
-/**
- * @deprecated since Moodle 3.4. MDL-59333
- */
-function calendar_get_upcoming() {
-    throw new coding_exception('calendar_get_upcoming() has been removed. ' .
-            'Please see block_calendar_upcoming::get_content() for the correct API usage.');
-}
-
-/**
- * @deprecated since Moodle 3.4. MDL-50666
- */
-function allow_override() {
-    throw new coding_exception('allow_override() has been removed. Please update your code to use core_role_set_override_allowed.');
-}
-
-/**
- * @deprecated since Moodle 3.4. MDL-50666
- */
-function allow_assign() {
-    throw new coding_exception('allow_assign() has been removed. Please update your code to use core_role_set_assign_allowed.');
-}
-
-/**
- * @deprecated since Moodle 3.4. MDL-50666
- */
-function allow_switch() {
-    throw new coding_exception('allow_switch() has been removed. Please update your code to use core_role_set_switch_allowed.');
-}
-
-/**
- * @deprecated since Moodle 3.5. MDL-61132
- */
-function question_add_tops() {
-    throw new coding_exception(
-        'question_add_tops() has been removed. You may want to pass $top = true to get_categories_for_contexts().'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.5. MDL-61132
- */
-function question_is_only_toplevel_category_in_context() {
-    throw new coding_exception('question_is_only_toplevel_category_in_context() has been removed. '
-            . 'Please update your code to use question_is_only_child_of_top_category_in_context() instead.');
-}
-
-/**
- * @deprecated since Moodle 3.5
- */
-function message_move_userfrom_unread2read() {
-    throw new coding_exception('message_move_userfrom_unread2read() has been removed.');
-}
-
-/**
- * @deprecated since Moodle 3.5
- */
-function message_get_blocked_users() {
-    throw new coding_exception(
-        'message_get_blocked_users() has been removed, please use \core_message\api::get_blocked_users() instead.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.5
- */
-function message_get_contacts() {
-    throw new coding_exception('message_get_contacts() has been removed.');
-}
-
-/**
- * @deprecated since Moodle 3.5
- */
-function message_mark_message_read() {
-    throw new coding_exception('message_mark_message_read() has been removed, please use \core_message\api::mark_message_as_read()
-        or \core_message\api::mark_notification_as_read().');
-}
-
-/**
- * @deprecated since Moodle 3.5
- */
-function message_can_delete_message() {
-    throw new coding_exception(
-        'message_can_delete_message() has been removed, please use \core_message\api::can_delete_message() instead.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.5
- */
-function message_delete_message() {
-    throw new coding_exception(
-        'message_delete_message() has been removed, please use \core_message\api::delete_message() instead.'
-    );
-}
-
-/**
- * @deprecated since 3.6
- */
-function calendar_get_all_allowed_types() {
-    throw new coding_exception(
-        'calendar_get_all_allowed_types() has been removed. Please use calendar_get_allowed_types() instead.'
-    );
-
-}
-
-/**
- * @deprecated since Moodle 3.6.
- */
-function groups_get_all_groups_for_courses() {
-    throw new coding_exception(
-        'groups_get_all_groups_for_courses() has been removed and can not be used anymore.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.6. Please use the Events 2 API.
- */
-function events_get_cached() {
-    throw new coding_exception(
-        'Events API using $handlers array has been removed in favour of Events 2 API, please use it instead.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.6. Please use the Events 2 API.
- */
-function events_uninstall() {
-    throw new coding_exception(
-        'Events API using $handlers array has been removed in favour of Events 2 API, please use it instead.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.6. Please use the Events 2 API.
- */
-function events_cleanup() {
-    throw new coding_exception(
-        'Events API using $handlers array has been removed in favour of Events 2 API, please use it instead.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.6. Please use the Events 2 API.
- */
-function events_dequeue() {
-    throw new coding_exception(
-        'Events API using $handlers array has been removed in favour of Events 2 API, please use it instead.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.6. Please use the Events 2 API.
- */
-function events_get_handlers() {
-    throw new coding_exception(
-        'Events API using $handlers array has been removed in favour of Events 2 API, please use it instead.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.6. Please use the get_roles_used_in_context().
- */
-function get_roles_on_exact_context() {
-    throw new coding_exception(
-        'get_roles_on_exact_context() has been removed, please use get_roles_used_in_context() instead.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.6. Please use the get_roles_used_in_context().
- */
-function get_roles_with_assignment_on_context() {
-    throw new coding_exception(
-        'get_roles_with_assignment_on_context() has been removed, please use get_roles_used_in_context() instead.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.6
- */
-function message_add_contact() {
-    throw new coding_exception(
-        'message_add_contact() has been removed. Please use \core_message\api::create_contact_request() instead. ' .
-        'If you wish to block or unblock a user please use \core_message\api::is_blocked() and ' .
-        '\core_message\api::block_user() or \core_message\api::unblock_user() respectively.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.6
- */
-function message_remove_contact() {
-    throw new coding_exception(
-        'message_remove_contact() has been removed. Please use \core_message\api::remove_contact() instead.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.6
- */
-function message_unblock_contact() {
-    throw new coding_exception(
-        'message_unblock_contact() has been removed. Please use \core_message\api::unblock_user() instead.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.6
- */
-function message_block_contact() {
-    throw new coding_exception(
-        'message_block_contact() has been removed. Please use \core_message\api::is_blocked() and ' .
-        '\core_message\api::block_user() instead.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.6
- */
-function message_get_contact() {
-    throw new coding_exception(
-        'message_get_contact() has been removed. Please use \core_message\api::get_contact() instead.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.7
- */
-function get_courses_page() {
-    throw new coding_exception(
-        'Function get_courses_page() has been removed. Please use core_course_category::get_courses() ' .
-        'or core_course_category::search_courses()'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.8
- */
-function report_insights_context_insights(\context $context) {
-    throw new coding_exception(
-        'Function report_insights_context_insights() ' .
-        'has been removed. Please use \core_analytics\manager::cached_models_with_insights instead'
-    );
-}
-
-/**
- * @deprecated since 3.9
- */
-function get_module_metadata() {
-    throw new coding_exception(
-        'get_module_metadata() has been removed. Please use \core_course\local\service\content_item_service instead.');
-}
-
-/**
- * @deprecated since Moodle 3.9 MDL-63580. Please use the \core\task\manager::run_from_cli($task).
- */
-function cron_run_single_task() {
-    throw new coding_exception(
-        'cron_run_single_task() has been removed. Please use \\core\task\manager::run_from_cli() instead.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.9 MDL-52846. Please use new task API.
- */
-function cron_execute_plugin_type() {
-    throw new coding_exception(
-        'cron_execute_plugin_type() has been removed. Please, use the Task API instead: ' .
-        'https://moodledev.io/docs/apis/subsystems/task.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.9 MDL-52846. Please use new task API.
- */
-function cron_bc_hack_plugin_functions() {
-    throw new coding_exception(
-        'cron_bc_hack_plugin_functions() has been removed. Please, use the Task API instead: ' .
-        'https://moodledev.io/docs/apis/subsystems/task.'
-    );
-}
-
-/**
- * @deprecated since Moodle 3.9 MDL-68612 - See \core_user\table\participants_search for an improved way to fetch participants.
- */
-function user_get_participants_sql() {
-    $deprecatedtext = __FUNCTION__ . '() has been removed. ' .
-                 'Please use \core\table\participants_search::class with table filtersets instead.';
-    throw new coding_exception($deprecatedtext);
-}
-
-/**
- * @deprecated since Moodle 3.9 MDL-68612 - See \core_user\table\participants_search for an improved way to fetch participants.
- */
-function user_get_total_participants() {
-    $deprecatedtext = __FUNCTION__ . '() has been removed. ' .
-                      'Please use \core\table\participants_search::class with table filtersets instead.';
-    throw new coding_exception($deprecatedtext);
-}
-
-/**
- * @deprecated since Moodle 3.9 MDL-68612 - See \core_user\table\participants_search for an improved way to fetch participants.
- */
-function user_get_participants() {
-    $deprecatedtext = __FUNCTION__ . '() has been removed. ' .
-                      'Please use \core\table\participants_search::class with table filtersets instead.';
-    throw new coding_exception($deprecatedtext);
-}
-
-/**
- * @deprecated Since Moodle 3.9. MDL-65835
- */
-function plagiarism_save_form_elements() {
-    throw new coding_exception(
-        'Function plagiarism_save_form_elements() has been removed. ' .
-        'Please use {plugin name}_coursemodule_edit_post_actions() instead.'
-    );
-}
-
-/**
- * @deprecated Since Moodle 3.9. MDL-65835
- */
-function plagiarism_get_form_elements_module() {
-    throw new coding_exception(
-        'Function plagiarism_get_form_elements_module() has been removed. ' .
-        'Please use {plugin name}_coursemodule_standard_elements() instead.'
-    );
-}
-
-/**
- * @deprecated Since Moodle 3.9 - MDL-68500 please use {@see \core\dataformat::download_data}
- */
-function download_as_dataformat() {
-    throw new coding_exception(__FUNCTION__ . '() has been removed, please use \core\dataformat::download_data() instead');
-}
-
-/**
- * @deprecated since Moodle 3.10
- */
-function make_categories_options() {
-    throw new coding_exception(__FUNCTION__ . '() has been removed. ' .
-        'Please use \core_course_category::make_categories_list() instead.');
-}
-
-/**
- * @deprecated since 3.10
- */
-function message_count_unread_messages() {
-    throw new coding_exception('message_count_unread_messages has been removed.');
-}
-
-/**
- * @deprecated since 3.10
- */
-function serialise_tool_proxy() {
-    throw new coding_exception('serialise_tool_proxy has been removed.');
-}
-
-/**
- * @deprecated Since Moodle 3.11.
- */
-function badges_check_backpack_accessibility() {
-    throw new coding_exception('badges_check_backpack_accessibility() can not be used any more, it was only used for OBv1.0');
-}
-
-/**
- * @deprecated Since Moodle 3.11.
- */
-function badges_setup_backpack_js() {
-    throw new coding_exception('badges_setup_backpack_js() can not be used any more, it was only used for OBv1.0');
-}
-
-/**
- * @deprecated Since Moodle 3.11.
- */
-function badges_local_backpack_js() {
-    throw new coding_exception('badges_local_backpack_js() can not be used any more, it was only used for OBv1.0');
-}
-
-/**
- * @deprecated since Moodle 3.11 MDL-45242
- */
-function get_extra_user_fields() {
-    throw new coding_exception('get_extra_user_fields() has been removed. Please use the \core_user\fields API instead.');
-}
-
-/**
- * @deprecated since Moodle 3.11 MDL-45242
- */
-function get_extra_user_fields_sql() {
-    throw new coding_exception('get_extra_user_fields_sql() has been removed. Please use the \core_user\fields API instead.');
-}
-
-/**
- * @deprecated since Moodle 3.11 MDL-45242
- */
-function get_user_field_name() {
-    throw new coding_exception('get_user_field_name() has been removed. Please use \core_user\fields::get_display_name() instead');
-}
-
-/**
- * @deprecated since Moodle 3.11 MDL-45242
- */
-function get_all_user_name_fields() {
-    throw new coding_exception('get_all_user_name_fields() is deprecated. Please use the \core_user\fields API instead');
-}
-
-/**
- * @deprecated since Moodle 3.11 MDL-71051
- */
-function profile_display_fields() {
-    throw new coding_exception(__FUNCTION__ . '() has been removed.');
-}
-
-/**
- * @deprecated since Moodle 3.11 MDL-71051
- */
-function profile_edit_category() {
-    throw new coding_exception(__FUNCTION__ . '() has been removed.');
-}
-
-/**
- * @deprecated since Moodle 3.11 MDL-71051
- */
-function profile_edit_field() {
-    throw new coding_exception(__FUNCTION__ . '() has been removed.');
-}
-
-/**
- * @deprecated since Moodle 4.0 MDL-71953
- */
-function calendar_process_subscription_row() {
-    throw new coding_exception(__FUNCTION__ . '() has been removed.');
-}
-
-/**
- * @deprecated since Moodle 4.0 MDL-71953
- */
-function calendar_import_icalendar_events() {
-    throw new coding_exception(__FUNCTION__ . '() has been removed. Please use calendar_import_events_from_ical() instead.');
-}
-
-/**
- * @deprecated since Moodle 4.0. Tabs navigation has been replaced with tertiary navigation.
- */
-function grade_print_tabs() {
-    throw new coding_exception(__FUNCTION__ . '() has been removed.');
-}
-
-/**
- * @deprecated since Moodle 4.0. Dropdown box navigation has been replaced with tertiary navigation.
- */
-function print_grade_plugin_selector() {
-    throw new coding_exception(__FUNCTION__ . '() has been removed.');
-}
-
-/**
- * @deprecated since Moodle 4.0. Please use {@link course_modinfo::purge_course_section_cache_by_id()}
- *             or {@link course_modinfo::purge_course_section_cache_by_number()} instead.
- */
-function course_purge_section_cache() {
-    throw new coding_exception(__FUNCTION__ . '() has been removed. ' .
-        'Please use course_modinfo::purge_course_section_cache_by_id() ' .
-        'or course_modinfo::purge_course_section_cache_by_number() instead.');
-}
-
-/**
- * @deprecated since Moodle 4.0. Please use {@link course_modinfo::purge_course_module_cache()} instead.
- */
-function course_purge_module_cache() {
-    throw new coding_exception(__FUNCTION__ . '() has been removed. ' .
-        'Please use course_modinfo::purge_course_module_cache() instead.');
-}
-
-/**
- * @deprecated since Moodle 4.0. Please use {@link course_modinfo::get_array_of_activities()} instead.
- */
-function get_array_of_activities() {
-    throw new coding_exception(__FUNCTION__ . '() has been removed. ' .
-        'Please use course_modinfo::get_array_of_activities() instead.');
-}
-
-/**
- * @deprecated since Moodle 4.1
- */
-#[\core\attribute\deprecated(
-    'Please throw a new moodle_exception instance instead.',
-    since: '4.1',
-    mdl: 'MDL-71062',
-    final: true
-)]
-function print_error(): void {
-    \core\deprecation::emit_deprecation_if_present([__FUNCTION__]);
-}
-
 /**
  * Execute cron tasks
  *