Remove redundant lines of code in StatisticsUtils.ts

[gaugup]

Description

It seems like the following lines are duplicated:-

    {
      key: BinaryClassificationMetrics.F1Score,
      label: localization.Interpret.Statistics.f1Score,
      stat:
        truePosCount / (truePosCount + 0.5 * (falsePosCount + falseNegCount))
    },

Checklist

• I have added screenshots above for all UI changes.
• I have added e2e tests for all UI changes.
• Documentation was updated if it was needed.

[github-actions]

https://responsibleai.blob.core.windows.net/pullrequest/microsoft/responsible-ai-toolbox/gaugup/RemoveRedudantCode/dashboard/index.html

[codecov-commenter]

Codecov Report

Merging #1571 (067b620) into main (4e97f7f) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1571   +/-   ##
=======================================
  Coverage   88.03%   88.03%           
=======================================
  Files         109      109           
  Lines        5291     5291           
=======================================
  Hits         4658     4658           
  Misses        633      633           

Flag	Coverage Δ
unittests	88.03% <ø> (ø)

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[github-actions]

https://responsibleai.blob.core.windows.net/pullrequest/microsoft/responsible-ai-toolbox/gaugup/RemoveRedudantCode/dashboard/index.html

[github-actions]

https://responsibleai.blob.core.windows.net/pullrequest/microsoft/responsible-ai-toolbox/gaugup/RemoveRedudantCode/dashboard/index.html

[github-actions]

https://responsibleai.blob.core.windows.net/pullrequest/microsoft/responsible-ai-toolbox/gaugup/RemoveRedudantCode/dashboard/index.html