Fix eventDispatcher cleanup in ResourceManager

Change-Id: I37c82c7dab75def607268e36f2f98e04d41581d9
diff --git a/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceManager.java b/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceManager.java
index db3f655..77a32f4 100644
--- a/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceManager.java
+++ b/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceManager.java
@@ -67,7 +67,7 @@
     @Deactivate
     public void deactivate() {
         store.unsetDelegate(delegate);
-        eventDispatcher.addSink(ResourceEvent.class, listenerRegistry);
+        eventDispatcher.removeSink(ResourceEvent.class);
     }
 
     @Override