Resolve "Get rid of branch element all in bottom bar in WEB IDE"

What does this MR do?

Removes the branch name on the WebIDE status bar.

Why was this MR needed?

The branch name is already present on the left sidebar.

Screenshots (if relevant)

Before change
After change

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• Review
  • Has been reviewed by UX
  • Has been reviewed by Frontend
• Conform by the merge request performance guides
• Conform by the style guides
• Squashed related commits together
• Internationalization required/considered

What are the relevant issue numbers?

Closes #44834 (closed)