Hide primary blog

Been looking everywhere, but I can't seem to find a solution..
When you view your profile, you see 'Primary Blog' somewhere on the top of the page. I want to hide that from the viewers (it's not of any importance to the users and it'll only confuse 'em when it stays there).

Tried to comment it in user-edit.php, but since it's not in there I was unable to do so. Does anyone know where/how to disable the viewing of 'Primary Blog'?