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/twitterqueuehandler.php

@@ -72,4 +72,3 @@ if (have_option('i')) {
 $handler = new TwitterQueueHandler($id);
 
 $handler->runOnce();
-?>