no-jira: e2e: check for deployer RB only when DeploymentConfig is enabled

[ingvagabund]

Follow up for #28939.

To resolve failing e2e in openshift/cluster-version-operator#1066.

[openshift-ci-robot]

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

In response to this:

Follow up for #28939.

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[ingvagabund]

/retest-required

[openshift-ci]

@ingvagabund: 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	e0b5e7d	link	false	/test e2e-aws-ovn-single-node
ci/prow/e2e-aws-ovn-single-node-upgrade	e0b5e7d	link	false	/test e2e-aws-ovn-single-node-upgrade
ci/prow/e2e-aws-ovn-ipsec-serial	e0b5e7d	link	false	/test e2e-aws-ovn-ipsec-serial

Full PR test history. Your PR dashboard.

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[xueqzhan]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ingvagabund, xueqzhan

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[openshift-bot]

[ART PR BUILD NOTIFIER]

Distgit: openshift-enterprise-tests
This PR has been included in build openshift-enterprise-tests-container-v4.17.0-202407221718.p0.g139b945.assembly.stream.el9.
All builds following this will include this PR.