[ticket/9556] Drop php closing tags, add trailing newline

Closing tags converted using Oleg's script.
remove-php-end-tags.py -a .

Trailing newlines added using the following where $ext is file extension.
find . -type f -name "*.$ext" -print | xargs printf "e %s\nw\n" | ed -s;

Extensions: php, css, html, js, xml.

PHPBB3-9556

phpBB/includes/constants.php

@@ -273,6 +273,3 @@ define('WORDS_TABLE',				$table_prefix . 'words');
 define('ZEBRA_TABLE',				$table_prefix . 'zebra');
 
 // Additional tables
-
-
-?>