Revert "Open tags should have closing tags"

This reverts commit aeca8807db.

We specifically DON'T have closing tags so we don't get errors with
whitespace after the closing tag.

I realize this is less of an issue with scripts, but we should still
not use closing tags.

scripts/fixup_replies.php

@@ -39,4 +39,3 @@ while ($notice->fetch()) {
     common_log(LOG_INFO, 'Getting replies for notice #' . $notice->id);
     common_save_replies($notice);
 }
-?>