removing some TODOs

Change-Id: Ic98c811573a1b37813993eedddec512ec85729f3
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 46e3c7e..4aece66 100644
--- a/utils/misc/src/main/java/org/onlab/packet/BasePacket.java
+++ b/utils/misc/src/main/java/org/onlab/packet/BasePacket.java
@@ -118,9 +118,7 @@
         } catch (final Exception e) {
             throw new RuntimeException("Could not clone packet");
         }
-        // TODO: we are using serialize()/deserialize() to perform the
-        // cloning. Not the most efficient way but simple. We can revisit
-        // if we hit performance problems.
+
         final byte[] data = this.serialize();
         pkt.deserialize(this.serialize(), 0, data.length);
         pkt.setParent(this.parent);