Since the V1 imported clusters were not created from UI, they cannot be removed from the UI but using the API.
Prerequisites:
1. All CNFs instantiated against the Workload Cluster are terminated and deleted.
2. Any Harbor - Partner System - VIM association for this Workload Cluster is removed.
3. The corresponding VIM for this Workload Cluster is deleted from TCA UI.
The following API will delete the Workload Cluster. Replace the <mgmt-cluster-id> and <workload-cluster-name> accordingly.
DELETE https://TCA-IP-FQDN/telco/api/infra/k8s/clusters/<mgmt-cluster-id>/importTcaKubernetesCluster?clusterName=<workload-cluster-name>