fix: SetuptoolsDeprecationWarning: bdist_wheel.universal is deprecated

/home/anders/.cache/uv/builds-v0/.tmpi6bxu5/lib/python3.12/site-packages/setuptools/_distutils/cmd.py:135: SetuptoolsDeprecationWarning: bdist_wheel.universal is deprecated
!!

        ********************************************************************************
        With Python 2.7 end-of-life, support for building universal wheels
        (i.e., wheels that support both Python 2 and Python 3)
        is being obviated.
        Please discontinue using this option, or if you still need it,
        file an issue with pypa/setuptools describing your use case.

        By 2025-Aug-30, you need to update your project and remove deprecated calls
        or your builds will no longer be supported.
        ********************************************************************************

!!
  self.finalize_options()

Signed-off-by: Anders Kaseorg <[email protected]>

Author: andersk

setup.cfg

@@ -1,6 +1,3 @@
-[bdist_wheel]
-universal = 1
-
 [metadata]
 description_file = README.md
 license = MIT