Stop relying on Enzyme internals

[gdalle]

DI extensions

Enzyme:

• Remove all custom mode modifiers in favor of the functions documented in Improve documentation of modes EnzymeAD/Enzyme.jl#1895

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.71%. Comparing base (b93c17e) to head (399efe4).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #511      +/-   ##
==========================================
+ Coverage   98.59%   98.71%   +0.12%     
==========================================
  Files         105      105              
  Lines        4546     4523      -23     
==========================================
- Hits         4482     4465      -17     
+ Misses         64       58       -6     

Flag	Coverage Δ
DI	98.90% <100.00%> (+0.18%)	⬆️
DIT	98.31% <ø> (ø)

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