Customizing login profile and homepage links

First, note that I have Membership plugin installed. I'm using template WPMU-Nelo.

On the upper right side of all my pages I see a login screen which I did not add as a widget. I am using a custom login template WP-Custom which replaces the full-page login. I'm also using a registration page from WPMU Membership plugin. Therefore it makes no sense to have this login widget on all of my pages. I can't seem to find a way to remove it. Can you tell me how?