How to Remove an Icon from Finder Sidebar in Mac OS X

1.  Open Finder.
   
   

   open finder
2. Right click the User icon.
3. Select Remove from Sidebar.
   
   

   click Remove from Sidebar
4. Now, it's disappeared.

Or you can also try this way.

1. Open Finder.
   
   

   open finder
2. Click File --> References.
   
   

   select references
3. Choose Sidebar.
   
   

   click Sidebar
4. Choose those icons that you want, and others will disappear automatically.