I had a bit of trouble installing Snow Leopard on my Air last night. I tried doing it from remote disc, but then I went to the store and the main computer fell asleep, ending the install halfway through. I was successfully able to install Snow Leopard with a friend's external optical drive, but during the first install attempt, a drive partition called "Install OS X" was created. It now sits on my desktop and as one of my drives on my toolbar. What do I do to remove this partition from the computer?