DM-42226: Remove bin.src directory now that sconsUtils can make the butler command

[timj]

Depends on lsst/sconsUtils#131

Checklist

• ran Jenkins
• added a release note for user-visible changes to doc/changes
• (if changing dimensions.yaml) make a copy of dimensions.yaml in configs/old_dimensions

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.50%. Comparing base (b3f240b) to head (830ca68).
Report is 3 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1123   +/-   ##
=======================================
  Coverage   89.50%   89.50%           
=======================================
  Files         366      366           
  Lines       48998    48998           
  Branches     5943     5943           
=======================================
  Hits        43855    43855           
  Misses       3729     3729           
  Partials     1414     1414           

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