MNT: Remove Python 2 from package classifiers

Author: dopplershift

setup.cfg

@@ -11,7 +11,6 @@ classifiers =
     Topic :: Software Development :: Testing
     Topic :: Scientific/Engineering :: Visualization
     Programming Language :: Python
-    Programming Language :: Python :: 2
     Programming Language :: Python :: 3
     Operating System :: OS Independent
     License :: OSI Approved :: BSD License