Revert "Merge branch 'eduardosanz/enable_admin_mode' into 'master'"

What does this MR do and why?

Revert "Merge branch 'eduardosanz/enable_admin_mode' into 'master'"

This reverts merge request !139791 (merged) to address the broken master incident Wednesday 2023-12-20 16:27 UTC - `gitlab-org/gi... (gitlab-org/quality/engineering-productivity/master-broken-incidents#4761 - closed)

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