User blog comment:Theqmayn/Ideas???/@comment-4813349-20120528222634/@comment-5483173-20120601234024

When you edit, there should be a part on the right of that lists all the catagories. If you put your cursor on it, there will be a pencil icon and a trash bin icon. Click on the trash bin icon to delete it. Or, if the edit is the most recent edit, just undo it.