[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/develop/merge_attachment_tables.php

@@ -76,5 +76,3 @@ $db->sql_query($sql);
 //$db->sql_query("DROP TABLE {$table_prefix}attach_temp");
 
 echo "<p><b>Done</b></p>\n";
- 
-?>