Uninstall PX-Backup

If you are running PX-Backup as a Helm-based install, you can uninstall it using Helm.

To uninstall PX-Backup:

Enter the following helm delete command with the --namespace flag and the namespace your PX-Backup cluster is installed on:
```
helm delete px-central --namespace px-backup
```
Cleanup the secrets and PVCs created by PX-Backup:
```
kubectl delete namespace px-backup
```