remove unnecessary 'setuptools' and 'wheel' dependencies

[jameslamb]

Contributes to rapidsai/build-planning#62.

It looks like the cugraph and pylibcugraph wheels and conda recipes have unnecessary dependencies on setuptools and wheel. I suspect those are left over from before those libraries were cut over to scikit-build-core.

This proposes removing those.

Checklist

• I am familiar with the Contributing Guidelines.
• New or existing tests cover these changes.
• The documentation is up to date with these changes.

Notes for Reviewers

How I confirmed there were no direct uses of setuptools in cugraph and pylibcugraph:

git grep -i setuptools

[jameslamb]

/merge

[jameslamb]

/merge

Oh my bad, missed that this needs a review from a Python codeowner.

[rlratzel]

Thanks!