As much as I love GitBox, it doesn’t actually provide the ability to delete tags from within the interface:

GitBox and The WordPress Plugin Boilerplate
Sad, right?
Occasionally, there are times in which I need to remove a tag because I need to go back and make some final adjustments to a commit prior to pushing to my current branch (which is usually just `master` anyway).
This means that I need to hop over into Terminal to issue a few git commands in order to delete a Git tag from the command line.