Removed redundant serialization block
diff --git a/utils/netty/src/main/java/org/onlab/netty/MessageEncoder.java b/utils/netty/src/main/java/org/onlab/netty/MessageEncoder.java
index c0a84df..d026dec 100644
--- a/utils/netty/src/main/java/org/onlab/netty/MessageEncoder.java
+++ b/utils/netty/src/main/java/org/onlab/netty/MessageEncoder.java
@@ -36,11 +36,6 @@
         // write preamble
         out.writeBytes(PREAMBLE);
 
-        try {
-            SERIALIZER.encode(message);
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
         byte[] payload = SERIALIZER.encode(message);
 
         // write payload length