Unregister

Important Commands
Normal (PC reachable)
Run on a PE CVM while Prism Central is reachable
ncli multicluster remove-from-multicluster external-ip-address-or-svm-ips=<PC_IP>
Force (PC unreachable / already gone)
Run on a PE CVM when Prism Central can't be reached (deleted, network down, etc.)
ncli multicluster remove-from-multicluster external-ip-address-or-svm-ips=<PC_IP> force=true
Verify
Check registration status before/after
ncli multicluster get-cluster-state