[GPRD] Post PG14 Upgrade Cleanup

As part of the PG12 to PG14 upgrade process, we first created a standby PG12 cluster off of the existing PG12 cluster and then we upgraded the standby PG12 cluster to PG14 and routed site traffic to the PG14 cluster. The old source PG12 cluster was shutdown during the PG14 upgrade.

GPRD Registry cluster was upgraded to PG14. We need to remove old PG12 cluster VMs. As we move forward with CI and Main cluster, we will use this issue to cleanup other clusters too.

Cleanup tasks to remove/drop the following Cluster VMs.

• [GPRD] Registry Cluster
  • DR Archive and Delayed replica
• [GPRD] CI Cluster
  • DR Archive and Delayed replica
• [GPRD] Main Cluster
  • DR Archive and Delayed replica