identity-pro: Fix html encode problem on users edit modal #14845
Description
Resolves #14783
We don't need to write the (OU) part as text muted, because the related input field already came as disabled and this makes it muted by design.
Checklist
- I fully tested it as developer / designer and created unit / integration tests
- I documented it (or no need to document or I will create a separate documentation issue)
- I worked with the design team to get their idea for UI/UX design (or no need to design for this PR)
- I've assigned reviewer, related labels and set a milestone for this PR