Remove cluster-service annotation to avoid conflicting with GKE addon…

[bowei]

… manager

[bowei]

/assign @rramkumar1
/assign @spencerhance

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/assign @rramkumar1
/assign @spencerhance

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[rramkumar1]

/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: bowei, rramkumar1

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