Remove parameter entirely.

cloudformation_templates/edx-reference-architecture.json

@@ -177,29 +177,6 @@
       ],
       "ConstraintDescription":"must be a valid EC2 instance type."
     },
-    "XqueueInstanceType":{
-      "Description":"Deprecated, Xqueue is now part of the commoncluster.",
-      "Type":"String",
-      "Default":"m1.small",
-      "AllowedValues":[
-        "t1.micro",
-        "m1.small",
-        "m1.medium",
-        "m1.large",
-        "m1.xlarge",
-        "m2.xlarge",
-        "m2.2xlarge",
-        "m2.4xlarge",
-        "m3.xlarge",
-        "m3.2xlarge",
-        "c1.medium",
-        "c1.xlarge",
-        "cc1.4xlarge",
-        "cc2.8xlarge",
-        "cg1.4xlarge"
-      ],
-      "ConstraintDescription":"must be a valid EC2 instance type."
-    },
     "SSHLocation":{
       "Description":"The IP address range that can be used to SSH to the EC2 instances",
       "Type":"String",