Slice out SerializationService from StoreService

Change-Id: I23a3616179fd5626277037fd0014670da8e15da4
diff --git a/core/store/hz/cluster/src/main/java/org/onlab/onos/store/cluster/impl/DistributedClusterStore.java b/core/store/hz/cluster/src/main/java/org/onlab/onos/store/cluster/impl/DistributedClusterStore.java
index 0f375f6..f83ac59 100644
--- a/core/store/hz/cluster/src/main/java/org/onlab/onos/store/cluster/impl/DistributedClusterStore.java
+++ b/core/store/hz/cluster/src/main/java/org/onlab/onos/store/cluster/impl/DistributedClusterStore.java
@@ -49,6 +49,7 @@
     private final MembershipListener listener = new InternalMembershipListener();
     private final Map<NodeId, State> states = new ConcurrentHashMap<>();
 
+    @Override
     @Activate
     public void activate() {
         super.activate();
@@ -56,7 +57,7 @@
 
         rawNodes = theInstance.getMap("nodes");
         OptionalCacheLoader<NodeId, DefaultControllerNode> nodeLoader
-                = new OptionalCacheLoader<>(storeService, rawNodes);
+                = new OptionalCacheLoader<>(kryoSerializationService, rawNodes);
         nodes = new AbsentInvalidatingLoadingCache<>(newBuilder().build(nodeLoader));
         rawNodes.addEntryListener(new RemoteCacheEventHandler<>(nodes), true);