Removed the old openflowj protocol library

Change-Id: I4fcd0399c6eb0d9089116e365b55505042ded1fc
diff --git a/src/main/java/net/onrc/onos/core/util/Dpid.java b/src/main/java/net/onrc/onos/core/util/Dpid.java
index 1abd0f1..e157975 100644
--- a/src/main/java/net/onrc/onos/core/util/Dpid.java
+++ b/src/main/java/net/onrc/onos/core/util/Dpid.java
@@ -5,7 +5,7 @@
 
 import org.codehaus.jackson.map.annotate.JsonDeserialize;
 import org.codehaus.jackson.map.annotate.JsonSerialize;
-import org.openflow.util.HexString;
+import org.projectfloodlight.openflow.util.HexString;
 
 /**
  * The class representing a network switch DPID.