[ticket/10969] Remove remove_remarks(&$sql) and remove_comments(&$output).

Merge their bodies into phpbb_remove_comments($input).

PHPBB3-10969

phpBB/includes/functions_admin.php

@@ -2291,21 +2291,6 @@ function auto_prune($forum_id, $prune_mode, $prune_flags, $prune_days, $prune_fr
 	return;
 }
 
-/**
-* remove_comments will strip the sql comment lines out of an uploaded sql file
-* specifically for mssql and postgres type files in the install....
-*
-* @deprecated		Use phpbb_remove_comments() instead.
-*/
-function remove_comments(&$output)
-{
-	// Remove /* */ comments (http://ostermiller.org/findcomment.html)
-	$output = preg_replace('#/\*(.|[\r\n])*?\*/#', "\n", $output);
-
-	// Return by reference and value.
-	return $output;
-}
-
 /**
 * Cache moderators, called whenever permissions are changed via admin_permissions. Changes of username
 * and group names must be carried through for the moderators table