Update setup.py

Co-authored-by: Brian Helba <[email protected]>

Author: Asif Saif Uddin

setup.py

@@ -34,7 +34,6 @@ def read(*parts):
     ],
     extras_require={
         'testing': [
-            'django-discover-runner',
             'django-cache-url>=1.0.0',
             'dj-database-url',
             'dj-email-url',