Remove go to profile text from tooltips

What does this MR do and why?

Describe in detail what your merge request does and why.

• Removes "go to their profile" text from user tooltips on MR/epics/issues lists
• The text has become super long, especially with the addition of attention requests that it takes just a few moments too long to read and understand what the tooltip is doing

Screenshots or screen recordings

Before	After

MR acceptance checklist

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