Revert "feat: support prerun with minimal services"

[eggfoobar]

This reverts commit ac7f7a9.

Minimal cluster startup is no longer needed, and our approach to storage migration changed, see #2019

/assign @pmtk

[pmtk]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: eggfoobar, pmtk

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[openshift-ci]

@eggfoobar: 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-openshift-conformance-reduced-arm	d544933	link	false	/test e2e-openshift-conformance-reduced-arm
ci/prow/microshift-e2e-arm	d544933	link	false	/test microshift-e2e-arm

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