How do you completely delete projects in Xcode? - Stack Overflow: "For Xcode 4, you can go to the Organizer by clicking the button at the top right, and then you'll see your projects. Right click the one you want to remove, and choose "Remove from Organizer..." This will remove all the associated data. I don't know if this is an option in previous versions of Xcode."
'via Blog this'
