NO-JIRA: e2e: don't skip mirrorconfigs on OSP

[EmilienM]

What this PR does / why we need it:

This was a bad copy paste but this test should not be skipped on
OpenStack.

[openshift-ci-robot]

@EmilienM: This pull request explicitly references no jira issue.

In response to this:

What this PR does / why we need it:

This was a bad copy paste but this test should not be skipped on
OpenStack.

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[EmilienM]

/test e2e-openstack-aws

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: EmilienM
Once this PR has been reviewed and has the lgtm label, please assign bryan-cox for approval. For more information see the Code Review Process.

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[openshift-ci]

@EmilienM: 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
ci/prow/e2e-openstack-aws	f7a56d1	link	false	/test e2e-openstack-aws

Full PR test history. Your PR dashboard.

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