Remove Social Tags Ribbon Control
If you want to remove "I like It" , "Tags & Notes " Then just follow these steps : Open Central Administration  Click on System Settings  Click on Manage Farm Features (_admin/ManageFarmFeatures.aspx)  Deactivate the Social Tags and Note Board Ribbon Controls   OR You can deactivate this feature by Power shell command :  SharePoint 2010 Management Shell Disable-SPFeature –Identity SocialRibbonControl