Remove scenes from "Scenes in build"

Hey all, This is just a minor thing that's been bothering my perfectionist self for a while. I accidentally added the same scene twice to the build menu, so now it looks like this: ![alt text][1] That's kind of silly. My system only contains the one scene. Can I remove it from that list somehow, to tidy it back up? [1]: http://img9.imageshack.us/img9/2/buildmenu.png