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/inbox_users.php

@@ -105,4 +105,3 @@ foreach ($ids as $id) {
 		$cache->delete(common_cache_key('user:notices_with_friends:' . $user->id . ';last'));
 	}
 }
-?>