Thread:Project:Support desk/remove tab's square

Is it possible to remove that little square for text like "page", "edit" for anonymous users? picture of what im talking about: https://yz3mzw.bn1304.livefilestore.com/y2pm_KKzaEOXwminqMTPDhwtJbjtgskKQp6Mu0pv1lIyefsRyMgppDqGzPu6gzn5FZN45U-rWkp-FGxm4n5UjZzx26Cr1u3ohCda2ra2qSyFc8/remo.jpg

i just want that little square gone since the "page" tab is the only thing anonymous user can see anyway.