Make a user "unlicensed" from "viewer" or "full"

Right now - if a user has a permission added in GS, but we later remove the license and keep them active you cannot remove the “viewer” or “full”.

This is extremely misleading. We need to be able to reset a user to “unlicensed”. We apply our licenses via SFDC, so we will never be able to have more than our licenses applied but by not being able to switch users to “unlicensed” it seems as though we are overallocated when we are not