Remove 3.3 from setup.py

Author: stephrdev

setup.py

@@ -77,7 +77,6 @@ def patched_os_walk(path, *args, **kwargs):
         'Programming Language :: Python',
         'Programming Language :: Python',
         'Programming Language :: Python :: 2.7',
-        'Programming Language :: Python :: 3.3',
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',