21-Delete RKE1 Kubernetes Cluster

1. Open Cluster Management
2. Check provisioned RKE1 cluster
3. Click Delete from menu

Expected Results

1. Can remove RKE1 Cluster and disapper on Cluster page
2. RKE1 Cluster will be removed from rancher menu under explore cluster
3. RKE1 virtual machine should be also be removed from Harvester