I'm looking into the process for moving a JIRA Software project to a Service Desk project. The project supports external users of our products, and each user obviously counts against the user license count currently. As the project switches to Service Desk, those uses will no longer need a user license in our JIRA instance, so I'm wondering how those users become "un-licensed" in this process? What needs to be changed in their profiles so that they are no longer a licensed user, but only access the Service Desk project as a customer?