MOTD disappear please

do you know how to make MOTD disappear after certain time?

Default key should be I. Don't know the cvar for it though

There's currently no way to automatically disable it after a certain time while spectating, though it does disappear when you join the match.

Temporary console fix is this (requires both, as +show_info isn't set at first):
+show_info
-show_info

Of course, pressing the key for it (I by default) will work too.