Stop mentioning the removed gate CSIDriverRegistry

[tengqm]

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

The kubectl CLI is still referring to the CSIDriverRegistry feature which was removed in 1.22.

Which issue(s) this PR is related to:

N/A

Special notes for your reviewer:

Does this PR introduce a user-facing change?

NONE

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: tengqm
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[k8s-ci-robot]

@tengqm: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-kubernetes-e2e-kind	6c9f279	link	true	/test pull-kubernetes-e2e-kind

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.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.