Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Are the shortcuts locked for some reason (Get Info from the Finder menu should tell you this)? Can you get them into the trash can at all? What are they, if you don't mind me asking? 🙂
 
Were these items in the Sidebar? You can just drag them out if you like. 🙂

Otherwise, items can be removed from various parts of the Finder by holding COMMAND and dragging them out. 🙂
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.