Clean up setup.cfg

Author: wch

setup.cfg

@@ -11,9 +11,8 @@ platforms = any
 classifiers =
     Development Status :: 2 - Pre-Alpha
     Intended Audience :: Developers
-    License :: OSI Approved :: MIT License v3 (MIT)
+    License :: OSI Approved :: MIT License
     Natural Language :: English
-    Programming Language :: Python :: 3
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9