Cleanup profileUrl from performance bar

What does this MR do and why?

profileUrl was removed from the performance bar 3 years ago, but there were some leftover mentions in the code. This MR removes those mentions.

How to set up and validate locally

Run any page, press p+b to verify the performance bar still works.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.