Remove external websockets library we were getting for Python3.5

Author: cderici

tox.ini

@@ -36,7 +36,6 @@ deps =
     websockets
     kubernetes
     # use fork to pick up fix for https://github.com/aaugustin/websockets/pull/528
-    git+https://github.com/johnsca/websockets@bug/client-redirects#egg=websockets ; python_version<'3.6'
 
 [testenv:lint]
 commands =