redis socket support

installer/roles/kubernetes/templates/credentials.py.j2

@@ -12,15 +12,3 @@ DATABASES = {
         },
     }
 }
-
-BROKER_URL = 'redis://{}:{}/'.format(
-    "{{ kubernetes_redis_hostname }}",
-    "{{ kubernetes_redis_port }}",)
-
-CHANNEL_LAYERS = {
-    'default': {'BACKEND': 'channels_redis.core.RedisChannelLayer',
-                'CONFIG': {
-                    'hosts': [("{{ kubernetes_redis_hostname }}", {{ kubernetes_redis_port|int }})],
-                    'capacity': 10000,
-                 }}
-}