OCPNODE-3874: Remove the unused constant CgroupModeV1

[sairameshv]

• cgroupv1 support has been removed from ocp > 4.19
• It is safe to remove the unused/dead constant from the code

Reference: openshift/machine-config-operator#5399 (comment)

/cc @wking

[openshift-ci-robot]

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[openshift-ci-robot]

@sairameshv: This pull request references OCPNODE-3874 which is a valid jira issue.

In response to this:

• cgroupv1 support has been removed from ocp > 4.19
• It is safe to remove the unused/dead constant from the code

Reference: openshift/machine-config-operator#5399 (comment)

/cc @wking

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[sairameshv]

/test verify-crd-schema

[QiWang19]

/lgtm

/hold

Hold before we get in openshift/machine-config-operator#5399

[everettraven]

Because cgroups v1 support has been removed for some time now and nowhere is relying on this constant, this seems fine to me.

/lgtm

@sairameshv over to you to get the verified label added.

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: everettraven, QiWang19

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[sairameshv]

/verified by @sairameshv
Removed the usage of this constant from NTO, MCO code bases

[openshift-ci-robot]

@sairameshv: This PR has been marked as verified by @sairameshv.

In response to this:

/verified by @sairameshv
Removed the usage of this constant from NTO, MCO code bases

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[sairameshv]

/hold cancel

[openshift-ci]

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