Remove the admin window ports.

Since everything is behind the nat, the rabbit boxes don't have public IPs so
adding a hole to the nat for this doesn't make sense.  They are't reachable
from the outside world.

cloudformation_templates/edx-reference-architecture.json

@@ -1338,12 +1338,6 @@
             "FromPort":"10016",
             "ToPort":"10016",
             "CidrIp":"0.0.0.0/0"
-          },
-          {
-            "IpProtocol":"tcp",
-            "FromPort":"15672",
-            "ToPort":"15672",
-            "CidrIp":"0.0.0.0/0"
           }
         ],
         "SecurityGroupEgress":[
@@ -1378,12 +1372,6 @@
             "FromPort":"10016",
             "ToPort":"10016",
             "CidrIp":"0.0.0.0/0"
-          },
-          {
-            "IpProtocol":"tcp",
-            "FromPort":"15672",
-            "ToPort":"15672",
-            "CidrIp":"0.0.0.0/0"
           }
         ]
       }