Hello,
Please tell me how to remove the Group RSS buttons?
if this is because you have removed them all from the admin but the Group ones stay there then that is a bug that is fixed in 5.1 due out next week.
if you just want to remove them anyway then you need to edit the spGroupView.php template using the theme editor and scan down to fiund the group RSS temp,ate function. Remove or comment out.
As always we recommend that you create your own SP theme so that any customisation is not lost during a future update. (http://codex.simple-press.com/codex/themes/theme-basics/creating-a-theme/)