Click on the version under Manage add-on and change the visibility to Private.
Thanks Jobin. I was looking for something cleaner (physically remove), but at least it's hidden from the public.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.