Remove 3scale port number from configs (#1676)

* Remove 'threescale-api-port' from all configs in node setup

* Update docs - remove references to threescale-api-port

* Fix typo

k8s/nginx-https/nginx-https-dep.yaml

@@ -60,11 +60,6 @@ spec:
             configMapKeyRef:
               name: vars
               key: openresty-backend-host
-        - name: THREESCALE_API_PORT
-          valueFrom:
-            configMapKeyRef:
-              name: vars
-              key: threescale-api-port
         - name: BIGCHAINDB_BACKEND_HOST
           valueFrom:
             configMapKeyRef:
@@ -89,8 +84,6 @@ spec:
           protocol: TCP
         - containerPort: "<cluster-frontend-port from ConfigMap>"
           protocol: TCP
-        - containerPort: "<threescale-api-port from ConfigMap>"
-          protocol: TCP
         - containerPort: "<cluster-health-check-port from ConfigMap>"
           protocol: TCP
           name: ngx-port