replace rabbitmq with redis

* local awx docker-compose and image build only.

installer/roles/image_build/files/supervisor_task.conf

@@ -26,19 +26,8 @@ stdout_logfile_maxbytes=0
 stderr_logfile=/dev/stderr
 stderr_logfile_maxbytes=0
 
-[program:channels-worker]
-command = awx-manage runworker --only-channels websocket.*
-directory = /var/lib/awx
-autostart = true
-autorestart = true
-stopwaitsecs = 5
-stdout_logfile=/dev/stdout
-stdout_logfile_maxbytes=0
-stderr_logfile=/dev/stderr
-stderr_logfile_maxbytes=0
-
 [group:tower-processes]
-programs=dispatcher,callback-receiver,channels-worker
+programs=dispatcher,callback-receiver
 priority=5
 
 # TODO: Exit Handler