I would like to remove a tag from a previous commit and I cannot find a way to do this in magit (I am using emacs24). I realize that I could probably use ":" and then enter the git command but I was wondering whether there might be a magit-specific way.
magit-delete-tag
will do it (run by M-x magit-delete-tag
). With recent version of magit, t k will run it.