Remove the shouldDisambiguateDisplayNames parameter from the RoomEvent and RoomStateEvent string builders

[stefanceriu]

Doug and I had a think about it and we can't come up with a reason why names should ever not be disambiguated

[codecov]

Codecov Report

❌ Patch coverage is 80.00000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 74.59%. Comparing base (2b8c21a) to head (bfea367).
⚠️ Report is 1 commits behind head on develop.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...ices/Room/RoomSummary/RoomEventStringBuilder.swift	66.66%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #5344   +/-   ##
========================================
  Coverage    74.59%   74.59%           
========================================
  Files          800      800           
  Lines        53519    53505   -14     
========================================
- Hits         39920    39912    -8     
+ Misses       13599    13593    -6     

Flag	Coverage Δ
unittests	64.53% <80.00%> (+<0.01%)	⬆️

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[pixlwave]

Let's see 🤞