Remove unused folder Benchmarks/TestGeneratorControlFiles

[andrewwinters5000]

This folder is a vestige of the old testing structure. I believe it can be safely removed.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.26%. Comparing base (1bcc107) to head (640ce8a).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #173   +/-   ##
=======================================
  Coverage   78.26%   78.26%           
=======================================
  Files          83       83           
  Lines       12388    12388           
  Branches        2        2           
=======================================
  Hits         9695     9695           
  Misses       2693     2693           

Flag	Coverage Δ
unittests	78.26% <ø> (ø)

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[DavidAKopriva]

They duplicate (though not completely) the ControlFiles contents. So I agree, they can be removed.