Refactor ssh access agent

Created by: eesaanatluri

This PR builds on top of PR #136. Previously to block ssh access, user is put in nossh group by ssh_access agent. This new design will make use of group_member agent that is part of group management framework which adds/removes a user to/from a group list provided

prod_rmq_agents/ssh_access.py

@@ -27,7 +27,6 @@ def ssh_access(ch, method, properties, body):
     msg["task"] = task
     queuename = msg["queuename"]
     state = msg["state"]
-    lock_groups = rcfg.lock_groups
 
     global corr_id
     try: