Changed to non deprecated removes that should have same effect as old…

[daidoji]

Rationale

Not really sure why these didn't show up in my old env but in my new env got deprecation warnings about map.remove being deprecated and to use swap or shift remove to be explicit about behavior.

Switched to something that seemed to fit with old code and tests still pass.

Testing

Tests remain same, no change to behavior.

For Reviewers

• Verify version bumped in Cargo.toml

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (7cd5453) 95.42% compared to head (70645e2) 95.42%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #167   +/-   ##
=======================================
  Coverage   95.42%   95.42%           
=======================================
  Files          32       32           
  Lines        3037     3037           
=======================================
  Hits         2898     2898           
  Misses        139      139           

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