stop sampling when we stop

[deads2k]

Now that we have a consumption wait, we can stop the consumption immediately and close based on whatever data we already have.

[dgoodwin]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: deads2k, dgoodwin

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[openshift-ci]

@deads2k: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-aws-ovn-single-node-serial	1f9dcc3	link	false	/test e2e-aws-ovn-single-node-serial
ci/prow/e2e-aws-ovn-single-node	1f9dcc3	link	false	/test e2e-aws-ovn-single-node
ci/prow/e2e-aws-ovn-single-node-upgrade	1f9dcc3	link	false	/test e2e-aws-ovn-single-node-upgrade
ci/prow/e2e-openstack-ovn	1f9dcc3	link	false	/test e2e-openstack-ovn

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[openshift-trt-bot]

Job Failure Risk Analysis for sha: 1f9dcc3

Job Name	Failure Risk
pull-ci-openshift-origin-master-e2e-aws-ovn-single-node-serial	High [sig-cluster-lifecycle][Feature:Machines][Serial] Managed cluster should grow and decrease when scaling different machineSets simultaneously [Timeout:30m][apigroup:machine.openshift.io] [Suite:openshift/conformance/serial] This test has passed 100.00% of 22 runs on jobs ['periodic-ci-openshift-release-master-nightly-4.14-e2e-aws-ovn-single-node-serial'] in the last 14 days.
pull-ci-openshift-origin-master-e2e-aws-ovn-upgrade	IncompleteTests
pull-ci-openshift-origin-master-e2e-aws-ovn-single-node	Medium [sig-arch][Late] operators should not create watch channels very often [apigroup:apiserver.openshift.io] [Suite:openshift/conformance/parallel] This test has passed 87.50% of 24 runs on jobs ['periodic-ci-openshift-release-master-nightly-4.14-e2e-aws-ovn-single-node'] in the last 14 days.