Resolve "Group Leave action is broken on Groups Dashboard and Homepage"

What does this MR do?

• Reverts changes from https://gitlab.com/gitlab-org/gitlab-ce/commit/97f08c651e0c95e33dee4a529ff80472e7d3bbe4 that causes regressions

Are there points in the code the reviewer needs to double check?

Why was this MR needed?

Screenshots (if relevant)

Does this MR meet the acceptance criteria?

• Review
  • Has been reviewed by Frontend
• Conform by the merge request performance guides
• Conform by the style guides
• Squashed related commits together
• Internationalization required/considered
• End-to-end tests pass (package-qa manual pipeline job)

What are the relevant issue numbers?

Closes #43299 (closed)