[enterprise-4.17] CNV-37381: Remove "not supported" statement for EBS and EF

[openshift-cherrypick-robot]

This is an automated cherry-pick of #72526

/assign bmcelvee

[openshift-ci-robot]

@openshift-cherrypick-robot: Ignoring requests to cherry-pick non-bug issues: CNV-37381

In response to [this](https://github.com/openshift/openshift-docs/pull/78432): >This is an automated cherry-pick of #72526 > >/assign bmcelvee Instructions for interacting with me using PR comments are available [here](https://prow.ci.openshift.org/command-help?repo=openshift%2Fopenshift-docs). If you have questions or suggestions related to my behavior, please file an issue against the [openshift-eng/jira-lifecycle-plugin](https://github.com/openshift-eng/jira-lifecycle-plugin/issues/new) repository.

[ocpdocs-previewbot]

🤖 Wed Jul 03 14:44:31 - Prow CI generated the docs preview:

https://78432--ocpdocs-pr.netlify.app/openshift-dedicated/latest/virt/install/preparing-cluster-for-virt.html https://78432--ocpdocs-pr.netlify.app/openshift-enterprise/latest/virt/install/preparing-cluster-for-virt.html https://78432--ocpdocs-pr.netlify.app/openshift-rosa/latest/virt/install/preparing-cluster-for-virt.html

[openshift-ci[bot]]

@openshift-cherrypick-robot: all tests passed!

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