More ruff linting

[akx]

No description provided.

[codecov-commenter]

Codecov Report

Attention: 5 lines in your changes are missing coverage. Please review.

Comparison is base (38cfa38) 58.34% compared to head (9ac52ea) 58.58%.

Files	Patch %	Lines
miditoolkit/midi/containers.py	20.00%	4 Missing ⚠️
miditoolkit/midi/parser.py	83.33%	1 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##           master      #40      +/-   ##
==========================================
+ Coverage   58.34%   58.58%   +0.24%     
==========================================
  Files          12       12              
  Lines         785      780       -5     
==========================================
- Hits          458      457       -1     
+ Misses        327      323       -4     

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[Natooz]

This looks greats thank you!
Some old commented code (removed here) was left just in case, but it shouldn't be needed really 👍