remove/reclaim asset mgmt clients/licenses from 'dead' machines

For a variety of reasons some of our asset management endpoints have gotten 'orphaned' -- meaning we still are using one of our asset management endpoint licenses for a machine, but that machine is either dead, or has had the motherboard replaced, or been wiped -- whatever.

How do I clear out these orphaned endpoints/licenses from my TeamViewer management console so that I can assign that endpoint license to another machine?

Thanks for your help!

-Allan