Is there a way to hide the Assmod bar?

You know, the “welcome to this server, please play nice” bar.
I heard that gamemodes can do it but how? Also, would I be able to do it in sandbox through autorun?

Forgive me if this has been asked before.

Remove all the notices (i forgot what they are called) in the menu and the bar will disappear as well.

Thanks! That did the trick.