Re-enable large tokamak (no f values)

[timothy-nunn]

Was disabled in #3619. Since then, something in the code has changed to cause the solver to take a different path and solve, although I'm not sure what (which is unsurprising since we don't know what caused it, although #3619 was put in just after #3565).

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 36.12%. Comparing base (8341086) to head (bc36b0f).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3652      +/-   ##
==========================================
- Coverage   36.36%   36.12%   -0.24%     
==========================================
  Files          88       88              
  Lines       22109    23046     +937     
==========================================
+ Hits         8039     8326     +287     
- Misses      14070    14720     +650     

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[mkovari]

Do you want to fix the error pointed out in #3574?
(dr_tf_wp and dr_tf_inboard are used as iteration variables simultaneously.)

[jonmaddock]

Great that this happens to converge again, but could you make Michael's changes about the mutually exclusive iteration variables? I'm aware this was a pre-existing problem, but it might be partly responsible for the convergence trouble in the first place.

[timothy-nunn]

#3662 will now fix the issue with large tokamak nof