Use only required OrdinaryDiffEq subpackage

[DanielDoehring]

using only the required package should be sufficient and relieves the user from the need to add 2 packages if only 1 is needed.

[github-actions]

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[JoshuaLampert]

I discussed this with Hendrik in #2266 (comment). Importing both packages allows to easily switch between integrators. But I would still be fine with this.

[DanielDoehring]

I discussed this with Hendrik in #2266 (comment).

Ah thanks!

Yeah this PR is heavily personally biased, as I always get annoyed when I create a new branch from main and have to include and precompile two packages 😶‍🌫️

[JoshuaLampert]

Yeah, I guess it makes sense to only leave the required subpackage, especially since you already did the (probably annoying (or did you (semi)automate this? 🤔)) work 😅

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.95%. Comparing base (19fedd4) to head (c33aaa8).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2392      +/-   ##
==========================================
+ Coverage   94.92%   96.95%   +2.03%     
==========================================
  Files         504      504              
  Lines       41717    41721       +4     
==========================================
+ Hits        39599    40448     +849     
+ Misses       2118     1273     -845     

Flag	Coverage Δ
unittests	96.95% <ø> (+2.03%)	⬆️

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[ranocha]

Could you please add this to the agenda for the next meeting to see what the others think about it?