All taken care of, it will be deleted within the next few days and is marked not to be used.
If you create a category by accident, just remove everything in the edit page and put this in there {{Delete Category}}. If you already referenced that Category in a Profile, put the correct Category you wish to use in that Profile before Deleting the incorrect category.
Do not do this to categories you find and think are incorrect. Ask on G2G about that category first. Look before you leap. Wink, wink.