Revert "Merge branch '561340-clean-admin-projects-vue' into 'master'"

What does this MR do and why?

Revert "Merge branch '561340-clean-admin-projects-vue' into 'master'"

This reverts merge request !201851 (merged)

References

• It looks like we have to maintain the feature flag until we fix this regression: #567350 (closed)

Screenshots or screen recordings

Before	After

How to set up and validate locally

MR acceptance checklist

Evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.