Remove deprecated deserialize() mthods from packet classes

Change-Id: I4e52ab368390d30f5f5f24d443a5021916d0c6a3
diff --git a/core/net/src/main/java/org/onosproject/net/neighbour/impl/DefaultNeighbourMessageActions.java b/core/net/src/main/java/org/onosproject/net/neighbour/impl/DefaultNeighbourMessageActions.java
index ed78212..cdbd35c 100644
--- a/core/net/src/main/java/org/onosproject/net/neighbour/impl/DefaultNeighbourMessageActions.java
+++ b/core/net/src/main/java/org/onosproject/net/neighbour/impl/DefaultNeighbourMessageActions.java
@@ -65,7 +65,7 @@
 
     @Override
     public void forward(NeighbourMessageContext context, Interface outIntf) {
-        Ethernet packetOut = (Ethernet) context.packet().clone();
+        Ethernet packetOut = context.packet().duplicate();
         if (outIntf.vlan().equals(VlanId.NONE)) {
             // The egress interface has no VLAN Id. Send out an untagged
             // packet
diff --git a/core/net/src/test/java/org/onosproject/net/neighbour/impl/DefaultNeighbourMessageActionsTest.java b/core/net/src/test/java/org/onosproject/net/neighbour/impl/DefaultNeighbourMessageActionsTest.java
index 52b5227..40e49af 100644
--- a/core/net/src/test/java/org/onosproject/net/neighbour/impl/DefaultNeighbourMessageActionsTest.java
+++ b/core/net/src/test/java/org/onosproject/net/neighbour/impl/DefaultNeighbourMessageActionsTest.java
@@ -113,7 +113,7 @@
     public void forwardToInterface() {
         Ethernet request = NeighbourTestUtils.createArpRequest(IP1);
 
-        Ethernet forwardedRequest = (Ethernet) request.clone();
+        Ethernet forwardedRequest = request.duplicate();
         forwardedRequest.setSourceMACAddress(INTF2.mac());
         forwardedRequest.setVlanID(INTF2.vlan().toShort());