Azure Notification Hubs Revert Namespace List Keys Change (Azure#16221)

* Revert namespace list keys

* Changing results to proper type

Author: mpodwysocki

specification/notificationhubs/resource-manager/Microsoft.NotificationHubs/stable/2017-04-01/examples/Namespaces/NHNameSpaceAuthorizationRuleListKey.json

@@ -9,29 +9,11 @@
   "responses": {
     "200": {
       "body": {
-        "value": [
-          {
-            "id": "/subscriptions/29cfa613-cbbc-4512-b1d6-1b3a92c7fa40/resourceGroups/5ktrial/providers/Microsoft.NotificationHubs/namespaces/nh-sdk-ns/AuthorizationRules/RootManageSharedAccessKey",
-            "name": "RootManageSharedAccessKey",
-            "type": "Microsoft.NotificationHubs/Namespaces/AuthorizationRules",
-            "location": null,
-            "tags": null,
-            "properties": {
-              "keyName": "RootManageSharedAccessKey",
-              "primaryKey": "############################################",
-              "secondaryKey": "############################################",
-              "claimType": "SharedAccessKey",
-              "claimValue": "None",
-              "rights": [
-                "Listen",
-                "Manage",
-                "Send"
-              ],
-              "createdTime": "2018-05-02T18:24:51.0690674Z",
-              "modifiedTime": "2018-05-02T18:24:51.0690674Z"
-            }
-          }
-        ]
+        "primaryConnectionString": "Endpoint=sb://nh-sdk-ns.servicebus.windows.net/;SharedAccessKeyName=RootManageSharedAccessKey;SharedAccessKey=############################################",
+        "secondaryConnectionString": "Endpoint=sb://nh-sdk-ns.servicebus.windows.net/;SharedAccessKeyName=RootManageSharedAccessKey;SharedAccessKey=############################################",
+        "primaryKey": "############################################",
+        "secondaryKey": "############################################",
+        "keyName": "RootManageSharedAccessKey"
       }
     }
   }

specification/notificationhubs/resource-manager/Microsoft.NotificationHubs/stable/2017-04-01/notificationhubs.json

@@ -636,7 +636,7 @@
           "200": {
             "description": "Gets the Namespace AuthorizationRule's Primary keys and Secondary keys along with the ConnectionStrings",
             "schema": {
-              "$ref": "#/definitions/SharedAccessAuthorizationRuleListResult"
+              "$ref": "#/definitions/ResourceListKeys"
             }
           }
         }