Issue #398: Removed unnecessary this.serialize() in BasePacket.clone().

Change-Id: I4ebbd98fc17e0b9ad0ffa221918a8e2634660810
diff --git a/utils/misc/src/main/java/org/onlab/packet/BasePacket.java b/utils/misc/src/main/java/org/onlab/packet/BasePacket.java
index fa77692..75c6873 100644
--- a/utils/misc/src/main/java/org/onlab/packet/BasePacket.java
+++ b/utils/misc/src/main/java/org/onlab/packet/BasePacket.java
@@ -94,7 +94,7 @@
         }
 
         final byte[] data = this.serialize();
-        pkt.deserialize(this.serialize(), 0, data.length);
+        pkt.deserialize(data, 0, data.length);
         pkt.setParent(this.parent);
         return pkt;
     }