Revert "*/py-{gdbm,sqlite3,tkinter}: switch from distutils to setuptools"

This reverts commit 7446740638e7d833fde0962e71ef440a6af3c749.

The change is not valid as setuptools have deprecated setup.py,
while distutils will be supported in existing point releases.
Python 3.12 support will require different solution.

PR: 268283