python - remove license classifier (deprecated in later python versions)

Author: zatkins-dev

setup.py

@@ -79,7 +79,6 @@ def make_libceed_so(self, prefix):
 Development Status :: 4 - Beta
 Intended Audience :: Developers
 Intended Audience :: Science/Research
-License :: OSI Approved :: BSD License
 Operating System :: POSIX
 Programming Language :: C
 Programming Language :: C++