Revert "Merge branch 'cb-extend-vcluster-use' into 'master'"

What does this MR do?

Revert "Merge branch 'cb-extend-vcluster-use' into 'master'"

This reverts merge request !4607 (merged)

Related issues

It seems to have broken security mirror pipelines: https://gitlab.com/gitlab-org/security/charts/gitlab/-/pipelines/2168075299/

Although it seems we just need a small tweak to make it work also.

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Required

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• Merge Request Title and Description are up to date, accurate, and descriptive.
• MR targeting the appropriate branch.
• MR has a green pipeline.
• Documentation created/updated.
• Tests added/updated, and test plan for scenarios not covered by automated tests.
• Equivalent MR/issue for omnibus-gitlab opened.

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• MR has a green pipeline on https://gitlab.com/gitlab-org/charts/gitlab.
• Consider downstream impact to the Operator, as per evaluating impact from changes to GitLab chart.