Remove new_navbar_layout feature flag
What does this MR do and why?
Removes the feature flag which was kept in place to optionally revert the new navbar layout (aligning the global search to the left and remove the text alongside the "hamburger" menu toggle).
We have committed to this new layout and no longer need to support the option to revert this change. Doing this will unblock a few issues which required changes to the global search behavior and could not easily be implemented while support for both layouts was being maintained.
Screenshots or screen recordings
How to set up and validate locally
- Enabling or disabling this feature flag should no longer have any effect
- All tests should continue to pass
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
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I have evaluated the MR acceptance checklist for this MR.