- Log in to your admin control panel.
- Open the style manager.
- double click on Navigation/Breadcrumb templates to view templates in the group
- choose the Navbar template (double click to get to the edit window)
- scroll down until you find: <!-- nav buttons bar -->
- delete everything between that and the line <!-- / nav buttons bar -->
- save and reload then view your forum
I would make a child of your default style and edit that to make sure it works before you do it live.