Remove trick for testing hpge_pars (speeding up by not using all files)

[tdixon97]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 60.34%. Comparing base (0097369) to head (6df2784).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #45      +/-   ##
==========================================
- Coverage   60.36%   60.34%   -0.02%     
==========================================
  Files          18       18              
  Lines        1047     1044       -3     
==========================================
- Hits          632      630       -2     
+ Misses        415      414       -1     

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