[Statistics] Remove unused param from GetSemanticDomainUserCounts

[imnasnainaec]

This change is 

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.53%. Comparing base (15b0b4c) to head (9f6743c).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3853   +/-   ##
=======================================
  Coverage   74.53%   74.53%           
=======================================
  Files         287      287           
  Lines       10670    10670           
  Branches     1326     1326           
=======================================
  Hits         7953     7953           
  Misses       2334     2334           
  Partials      383      383           

Flag	Coverage Δ
backend	85.65% <ø> (ø)
frontend	66.07% <100.00%> (ø)

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[jasonleenaylor]

Reviewed 7 of 7 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @imnasnainaec)