How do i leave the novice network

[Lego3400]

EDit: Did some digging so I'm replaceing my suggestion with instructions

Click the gear Icon next to your chat panel selection, scroll down to the one you want (You'll probably want the default General one) and click on it. A box should pop up with all the active chat channels in that window marked with yellow boxes. Tick the Novice Network box so it's grey instead and TADA!

You haven't really left but you'll never see it.