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/xmppdaemon.php

@@ -412,4 +412,3 @@ $foreground = have_option('f', 'foreground');
 $daemon = new XMPPDaemon($id, !$foreground);
 
 $daemon->runOnce();
-?>