Undo the removal of pkg_resources DeprecationWarning

This was removed downstream-only to give impacted packages more time.
However, we actually want the warning,
so packagers learn pkg_resources is deprecated.

No remaining Fedora 40 package fails to build because of this warning.

Remove-warning-from-pkg_resources.patch

@@ -1,30 +0,0 @@
-From 95546a2302152676192d5a4880b1e5d09d2f854f Mon Sep 17 00:00:00 2001
-From: Lumir Balhar <lbalhar@redhat.com>
-Date: Fri, 22 Sep 2023 00:11:50 +0200
-Subject: [PATCH] Remove warning from pkg_resources
-
----
- pkg_resources/__init__.py | 7 +------
- 1 file changed, 1 insertion(+), 6 deletions(-)
-
-diff --git a/pkg_resources/__init__.py b/pkg_resources/__init__.py
-index 3baa1f3..31f81a4 100644
---- a/pkg_resources/__init__.py
-+++ b/pkg_resources/__init__.py
-@@ -115,12 +115,7 @@ _namespace_handlers = None
- _namespace_packages = None
- 
- 
--warnings.warn(
--    "pkg_resources is deprecated as an API. "
--    "See https://setuptools.pypa.io/en/latest/pkg_resources.html",
--    DeprecationWarning,
--    stacklevel=2,
--)
-+
- 
- 
- _PEP440_FALLBACK = re.compile(r"^v?(?P<safe>(?:[0-9]+!)?[0-9]+(?:\.[0-9]+)*)", re.I)
--- 
-2.41.0
-

python-setuptools.spec

@@ -45,13 +45,6 @@ Patch:          Remove-optional-or-unpackaged-test-deps.patch
 # adjust it, but only when $RPM_BUILD_ROOT is set
 Patch:          Adjust-the-setup.py-install-deprecation-message.patch
 
-# Remove DeprecationWarning from pkg_resources.
-# The warning causes tests of dependant packages to fail
-# but their maintainers or developers are aware of that
-# so we are removing the warning here until they all switch
-# away from pkg_resources.
-Patch:          Remove-warning-from-pkg_resources.patch
-
 BuildArch:      noarch
 
 BuildRequires:  python%{python3_pkgversion}-devel