Resolve "Remove Builds tab from Merge Requests and Commits"

What does this MR do?

Removes builds tab from both merge requests and commits. Removes tests suites expecting those tabs.

Screenshots (if relevant)

Merge Request

Commit

Does this MR meet the acceptance criteria?

• Changelog entry added
• Documentation created/updated
• API support added
• Tests
  • Added for this feature/bug
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if it does - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

Closes #23638 (closed)