Removing legacy python integration

[llaniewski]

As there was not much opposition to #419, this PR is removing the legacy Python integration.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (3d8a6cc) 37.85% compared to head (449c875) 43.23%.
Report is 2 commits behind head on master.

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #473      +/-   ##
==========================================
+ Coverage   37.85%   43.23%   +5.38%     
==========================================
  Files         165      166       +1     
  Lines        7103     7535     +432     
==========================================
+ Hits         2689     3258     +569     
+ Misses       4414     4277     -137     

Flag	Coverage Δ
d2q9	30.46% <100.00%> (?)
d3q27_PSM_NEBB	36.53% <0.00%> (+0.53%)	⬆️
d3q27_pf_velocity	30.91% <0.00%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.