DM-42226: Remove bin.src directory

[timj]

Checklist

• ran Jenkins
• added a release note for user-visible changes to doc/changes

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.03%. Comparing base (2ebd24b) to head (cf09b0b).
Report is 3 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #315   +/-   ##
=======================================
  Coverage   90.03%   90.03%           
=======================================
  Files          50       50           
  Lines        4567     4567           
  Branches      420      420           
=======================================
  Hits         4112     4112           
  Misses        328      328           
  Partials      127      127           

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