OCM-5495: Remove depricated Dockerfile

[amalykhi]

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[openshift-ci-robot]

@amalykhi: This pull request references OCM-5495 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the task to target the "4.16.0" version, but no target version was set.

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[openshift-ci]

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