I'm a retard and a union leader. But I repeat myself.

This is really stupid, but I've put up a message for the union (up to 45 characters and no punctuation). Now, I can edit it, but I see no way to delete it. I've been just changing it to other stupid messages, but I'd like to just not have a message except during events and stuff. It doesn't let you save an empty message, or one with just spaces.

What am I missing?