optimization_trace to return noiseless function_values instead of noisy

[hvarfner]

Summary: Changing optimization trace to return underlying noiseless value instead of noisy.

Differential Revision:
D89407340

Privacy Context Container: L1307644

[meta-codesync]

@hvarfner has exported this pull request. If you are a Meta employee, you can view the originating Diff in D89407340.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.54%. Comparing base (3a707f6) to head (89d4ff0).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4682   +/-   ##
=======================================
  Coverage   96.54%   96.54%           
=======================================
  Files         572      572           
  Lines       59961    59961           
=======================================
  Hits        57891    57891           
  Misses       2070     2070           

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