This question has been closed as a duplicate, and I therefore cannot edit the tags. Since this is tagged as untagged, this tag appears in the list of tags when people are considering what tags to apply to their questions. As it would never be appropriate to use this tag, I recommend that the question be edited to show a valid tag, so that untagged can be removed and will no longer appear as a misleading example for new users.
How can this tag be removed now that the question is closed as duplicate?