disable snapshots, remove scheduledbackup for snapshots

[nhudson]

Currently we have ~ 36000+ VolumeSnapshots on the us-east-1 cluster in prod. This is causing the snapshot-controller to crash as it can't currently view that many objects from the Kubernetes API.

I1124 19:28:25.790912       1 main.go:157] Version: v8.0.1
I1124 19:28:25.791757       1 main.go:206] Start NewCSISnapshotController with kubeconfig [] resyncPeriod [15m0s]
E1124 19:29:25.797250       1 main.go:93] Failed to list v1 volumesnapshots with error=the server was unable to return a response in the time allotted, but may still be processing the request (get volumesnapshots.snapshot.storage.k8s.io)
E1124 19:30:25.898711       1 main.go:93] Failed to list v1 volumesnapshots with error=the server was unable to return a response in the time allotted, but may still be processing the request (get volumesnapshots.snapshot.storage.k8s.io)
I1124 19:31:26.049852       1 request.go:1110] Stream error http2.StreamError{StreamID:0x5, Code:0x2, Cause:(*errors.errorString)(0x2afa130)} when reading response body, may be caused by closed connection.
E1124 19:31:26.049969       1 main.go:93] Failed to list v1 volumesnapshots with error=stream error when reading response body, may be caused by closed connection. Please retry. Original error: stream error: stream ID 5; INTERNAL_ERROR; received from peer
E1124 19:32:26.276700       1 main.go:93] Failed to list v1 volumesnapshots with error=the server was unable to return a response in the time allotted, but may still be processing the request (get volumesnapshots.snapshot.storage.k8s.io)
E1124 19:33:25.798645       1 main.go:93] Failed to list v1 volumesnapshots with error=Get "[https://172.20.0.1:443/apis/snapshot.storage.k8s.io/v1/volumesnapshots](https://172.20.0.1/apis/snapshot.storage.k8s.io/v1/volumesnapshots)": context deadline exceeded
E1124 19:33:25.798682       1 main.go:231] Exiting due to failure to ensure CRDs exist during startup: context deadline exceeded

Disable volume snapshots again and make sure we remove the ScheduledBackup along with removing VolumeSnapshots

The removal of the VolumeSnapshots will be done with the operator (default keeping 1 day). If every namespace has 40 VolumeSnapshots it will remove all but 1, then remove that 24 hours later after it's over 24 hours old.

This adds 2 new functions remove_scheduled_backup and remove_snap_scheduled_backup. This will ensure that the ScheduledBackup of type volumeSnapshot is removed from the namespace of the instance.

[nhudson]

This issue with merging this now, is that deleting the snapshots in prod us-east-1 will not work because the controller will not start. Not sure of what to do about that just yet.

[nhudson]

Converting to draft for now.

[nhudson]

This is not needed, I forgot I added a config to enable/disable snapshots. This can be closed.