fix cluster all-in-one setup memcached

Change-Id: Ic3e49971f2db800fc5dfbe73262845a1e749b15d
diff --git a/metadata/service/control/cluster.yml b/metadata/service/control/cluster.yml
index d53b59e..af57c64 100644
--- a/metadata/service/control/cluster.yml
+++ b/metadata/service/control/cluster.yml
@@ -46,14 +46,6 @@
           port: 9160
         - host: ${_param:cluster_node03_address}
           port: 9160
-      cache:
-        members:
-        - host: ${_param:cluster_node01_address}
-          port: 11211
-        - host: ${_param:cluster_node02_address}
-          port: 11211
-        - host: ${_param:cluster_node03_address}
-          port: 11211
       identity:
         engine: keystone
         version: '2.0'