If you are unable to remove a Host from SCVMM Admin Console, or Failover Cluster Nodes, this article is for you. Mike published it a while back. I was looking for just such a solution and he showed me that he had already written exactly what I needed. Awesome! This is one to bookmark. Thanks Mike.
Read the article here.
Need to remove a VM that is stuck in a pending state and cannot be deleted? This article can help with that.