Minor code cleanup - remove reflection and unnecessary usings

[waf]

• First commit - remove the only reflection in the entire solution. It was unnecessary.
• Second commit - remove unnecessary usings across solution

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.5%. Comparing base (52d05d2) to head (1391fbd).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main    #303   +/-   ##
=====================================
  Coverage   86.4%   86.5%           
=====================================
  Files         47      47           
  Lines       4081    4096   +15     
  Branches     679     679           
=====================================
+ Hits        3529    3544   +15     
  Misses       386     386           
  Partials     166     166           

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