[release-4.17] SDN-4930: Don't modify pod routes in tests

[openshift-cherrypick-robot]

This is an automated cherry-pick of #29243

/assign tssurya

[openshift-ci-robot]

@openshift-cherrypick-robot: Ignoring requests to cherry-pick non-bug issues: SDN-4930

In response to this:

This is an automated cherry-pick of #29243

/assign tssurya

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: openshift-cherrypick-robot
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[openshift-ci]

@openshift-cherrypick-robot: 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	a33c15a	link	false	/test e2e-aws-ovn-single-node-serial
ci/prow/e2e-aws-ovn-edge-zones	a33c15a	link	true	/test e2e-aws-ovn-edge-zones
ci/prow/e2e-aws-ovn-kube-apiserver-rollout	a33c15a	link	false	/test e2e-aws-ovn-kube-apiserver-rollout
ci/prow/e2e-aws-ovn-single-node-upgrade	a33c15a	link	false	/test e2e-aws-ovn-single-node-upgrade
ci/prow/e2e-azure-ovn-upgrade	a33c15a	link	false	/test e2e-azure-ovn-upgrade
ci/prow/e2e-vsphere-ovn-dualstack-primaryv6	a33c15a	link	false	/test e2e-vsphere-ovn-dualstack-primaryv6

Full PR test history. Your PR dashboard.

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