[DEQUARANTINE] Create Merged merge request can be reverted

What does this MR do?

Dequarantines the test Create Merged merge request can be reverted (https://gitlab.com/gitlab-org/gitlab/-/blob/master/qa/qa/specs/features/browser_ui/3_create/merge_request/revert/reverting_merge_request_spec.rb#L22)

This quarantined test has been found by Confiner to have passed 24 times consecutively, which exceeds the threshold of 3 times.

1. ce:instance-image-quarantine
2. ee:instance-image-quarantine
3. ce:praefect-quarantine
4. ee:praefect-quarantine
5. ce:instance-image-quarantine
6. ee:instance-image-quarantine
7. ce:praefect-quarantine
8. ee:praefect-quarantine
9. ce:instance-image-quarantine
10. ee:instance-image-quarantine
11. ce:praefect-quarantine
12. ee:praefect-quarantine
13. ce:instance-image-quarantine
14. ee:instance-image-quarantine
15. ce:praefect-quarantine
16. ee:praefect-quarantine
17. ce:instance-image-quarantine
18. ee:instance-image-quarantine
19. ce:praefect-quarantine
20. ee:praefect-quarantine
21. ce:instance-image-quarantine
22. ee:instance-image-quarantine
23. ce:praefect-quarantine
24. ee:praefect-quarantine

#335987 (closed)

(This MR was automatically generated by Confiner at 2022-03-18 20:19:56 UTC)