Remove pptree

[glxplz]

Fixes #505

[codecov-commenter]

Codecov Report

Patch and project coverage have no change.

Comparison is base (89b6c84) 78.13% compared to head (7925700) 78.13%.

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Additional details and impacted files

@@           Coverage Diff           @@
##             main     #506   +/-   ##
=======================================
  Coverage   78.13%   78.13%           
=======================================
  Files          14       14           
  Lines        1267     1267           
=======================================
  Hits          990      990           
  Misses        277      277           

Flag	Coverage Δ
unit	78.13% <ø> (ø)

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