Remove GKE Data Cache Watcher regular event logs

[halimsam]

What type of PR is this?
/kind feature

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/kind api-change
/kind bug
/kind cleanup
/kind design
/kind documentation
/kind failing-test
/kind feature
/kind flake

What this PR does / why we need it:
To remove GKE Data Cache Watcher regular event logs since it's generating alot of no-op logs for customer.
Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

NONE

[halimsam]

/ok-to-test

[k8s-ci-robot]

@halimsam: 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-gcp-compute-persistent-disk-csi-driver-e2e-windows-2019	08c8fcc	link	false	/test pull-gcp-compute-persistent-disk-csi-driver-e2e-windows-2019

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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[Sneha-at]

/lgtm

[sunnylovestiramisu]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: halimsam, sunnylovestiramisu

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