removing llvm

[K20shores]

Removes the JIT solver

We don't use this solver, and we have to use a very outdated version of llvm. If we still want a JIT solver, we should look into MLIR, which seems to be a better option anyway.

I personally have no problem removing this since it's in our git history and should be relatively easy to add back, but as of now, anytime we make a change to the CPU/GPU interfaces, we have to replicate that for the JIT solver that we aren't using and aren't shipping with musica. Maybe it's time we let it go

Let me know your thoughts

[sjsprecious]

I agree that it is better to remove the JIT version for now and we can always recover it when we find it is helpful. Thanks for doing it!

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.37%. Comparing base (cc68545) to head (314ad6c).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #886      +/-   ##
==========================================
- Coverage   94.49%   94.37%   -0.13%     
==========================================
  Files          71       63       -8     
  Lines        3850     3163     -687     
==========================================
- Hits         3638     2985     -653     
+ Misses        212      178      -34     

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[sjsprecious]

LGTM!