Remove outdated code

Change-Id: I34dad0c8d7f009ba7ab1dd2c58a4df35499e7c61
diff --git a/src/main/java/net/onrc/onos/ofcontroller/networkgraph/NetworkGraphDatastore.java b/src/main/java/net/onrc/onos/ofcontroller/networkgraph/NetworkGraphDatastore.java
index d5dd9e0..c7c2011 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/networkgraph/NetworkGraphDatastore.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/networkgraph/NetworkGraphDatastore.java
@@ -200,9 +200,6 @@
 				// retry
 			}
 		}
-
-		// Publish event to in-memory cache
-		graph.putLink(linkEvent);
 	}
 
 	public void removeLink(LinkEvent linkEvent) {