4280 non existent variables

[grmtrkngtn]

Description

Removed defunt pf coil nuclear heating variables from output.

Checklist

I confirm that I have completed the following checks:

• My changes follow the PROCESS style guide
• I have justified any large differences in the regression tests caused by this pull request in the comments.
• I have added new tests where appropriate for the changes I have made.
• If I have had to change any existing unit or integration tests, I have justified this change in the pull request comments.
• If I have made documentation changes, I have checked they render correctly.
• I have added documentation for my change, if appropriate.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 48.80%. Comparing base (d1b26ab) to head (061a755).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4310      +/-   ##
==========================================
+ Coverage   48.79%   48.80%   +0.01%     
==========================================
  Files         151      151              
  Lines       29339    29331       -8     
==========================================
  Hits        14315    14315              
+ Misses      15024    15016       -8     

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