When cluster remove is done , kube_config_cluster.yml continues to be present.

[sangeethah]

rke version v0.0.5-dev

Steps to reproduce the problem:
Create a new K8s cluster using cluster up command.
Remove K8s cluster using cluster remove command.
At this point , kube_config_cluster.yml continues to be present.

When attempting to add a new cluster using ```cluster up`` command , rke now attempts to fetch cluster state from the removed Kubernetes and it fails before it proceeds to creating a new cluster.

Sangeethas-MBP:~ sangeethahariharan1$ ./rke_darwin-amd64 cluster up
INFO[0000] Building Kubernetes cluster                  
INFO[0000] [ssh] Checking private key                   
INFO[0000] [ssh] Start tunnel for host [ip-172-31-38-78.us-east-2.compute.internal] 
INFO[0000] [ssh] Start tunnel for host [ip-172-31-39-84.us-east-2.compute.internal] 
INFO[0000] [ssh] Start tunnel for host [ip-172-31-37-222.us-east-2.compute.internal] 
INFO[0000] [ssh] Start tunnel for host [ip-172-31-38-78.us-east-2.compute.internal] 
INFO[0000] [ssh] Start tunnel for host [ip-172-31-39-84.us-east-2.compute.internal] 
INFO[0000] [state] Found local kube config file, trying to get state from cluster 
INFO[0000] [state] Fetching cluster state from Kubernetes 
INFO[0030] Timed out waiting for kubernetes cluster to get state 
INFO[0030] [certificates] Generating kubernetes certificates 
INFO[0030] [certificates] Generating CA kubernetes certificates 
INFO[0031] [certificates] Generating Kubernetes API server certificates 

Should cluster remove , also remove kube_config_cluster.yml to indicate that rke will not be working on this cluster anymore?

[sangeethah]

Tested with rke verison - v0.0.8-dev
Create a new K8s cluster using cluster up command.
Remove K8s cluster using cluster remove command.
After this , kube_config_cluster.yml get removed.