UPSTREAM: <drop>: Temporarily ignore metrics during namespace cleanup

[smarterclayton]

The new metrics adapter is periodically failing, causing e2e tests to
fail because they get a 500 trying to list podmetrics/nodemetrics.

Ignore those resources for now.

https://openshift-gce-devel.appspot.com/build/origin-ci-test/pr-logs/pull/openshift_cluster-monitoring-operator/174/pull-ci-openshift-cluster-monitoring-operator-master-e2e-aws/21/

[squat]

/lgtm

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: smarterclayton, squat

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[openshift-ci-robot]

New changes are detected. LGTM label has been removed.

[smarterclayton]

Force pushing to clear the break for right now

[openshift-ci-robot]

@smarterclayton: The following tests failed, say /retest to rerun them all:

Test name	Commit	Details	Rerun command
ci/prow/e2e-aws	02622d5	link	/test e2e-aws
ci/prow/e2e-gcp	02622d5	link	/test e2e-gcp

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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