gh-133866: remove deprecated and undocumented function ctypes.SetPointerType

[picnixz]

• Issue: Remove deprecated and undocumented function ctypes.SetPointerType #133866

---

📚 Documentation preview 📚: https://cpython-previews--133869.org.readthedocs.build/

[picnixz]

Let's discuss on the issue if we can also remove the C interface as Kumar wanted.

[encukou]

Could you also remove the note from Doc/deprecations/pending-removal-in-3.15.rst?

[picnixz]

Could you also remove the note from Doc/deprecations/pending-removal-in-3.15.rst?

Are the docs for 3.14 served from the main branch or the 3.14 branch? if it's from the main branch, we need to preserve the file.

Note: I think we cannot delete them because they are built from the main branch.

[encukou]

3.14 docs are built from the 3.14 branch. There are also 3.15 (dev) docs, though I see they don't yet always appear in the switcher.
Anyway, pending-removal-in-3.15.rst also lists some other API that's already gone; it'll need another cleanup pass.

Thank you for removing this!

[mhsmith]

This PR appears to have broken the Lint check on the main branch: https://github.com/python/cpython/actions/runs/15324974930.

[encukou]

Indeed, a lint check was quietly added while this was on review.

Anyway, Victor fixed it before I got to your comment :)