Delete the data when CR is deleted.

[balajismaniam]

• Updated pod template to make it work for both add and delete.
• Sanitized label key for uniqueness.

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[balajismaniam]

/assign @ajay191191

[balajismaniam]

Prow related gates won't work since it is not setup for this repo yet.

[k8s-ci-robot]

@balajismaniam: The following test failed, say /retest to rerun them all:

Test name	Commit	Details	Rerun command
kubeflow-experimental-kvc-presubmit	fbf2dc36396bda7da7780451efa6bda62e0afb34	link	/test kubeflow-experimental-kvc-presubmit

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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