Make official build assetless

[ViktorHofer]

Contributes to dotnet/dotnet#711

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.15200%. Comparing base (bd04024) to head (b8b3e7b).
⚠️ Report is 10 commits behind head on main.

Additional details and impacted files

@@                 Coverage Diff                 @@
##                main      #14054         +/-   ##
===================================================
- Coverage   77.15851%   77.15200%   -0.00652%     
===================================================
  Files           3279        3279                 
  Lines         645317      645317                 
  Branches       47718       47718                 
===================================================
- Hits          497917      497875         -42     
- Misses        143718      143752         +34     
- Partials        3682        3690          +8     

Flag	Coverage Δ
Debug	77.15200% <ø> (-0.00652%)	⬇️
integration	18.97571% <ø> (-0.01499%)	⬇️
production	52.01204% <ø> (-0.01459%)	⬇️
test	97.40749% <ø> (ø)
unit	49.46361% <ø> (+0.01980%)	⬆️

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[ViktorHofer]

@dotnet/dotnet-winforms / @merriemcgaw can you please review and approve? The same change was already done to most other VMR repos. See the linked issue in the top post for more details.