How to remove deleted Session Hosts from RDS2012 Deployment

I had to delete some old RDS session hosts VMs to free up storage but forgot to remove them from the deployment fist.  Now I get errors on the connection broker deployment.  How do I remove them from the deployment if the servers are already gone?

I found this article but I wanted to see if there was a recommended way to remove them once they have been deleted instead of carving them out of the RDCms db.

Thanks

https://dave.harris.uno/unable-to-remove-deleted-session-hosts-from-rds2012-deployment/