SONAR Suggestion - protected members in final classes are pointless

Change-Id: Ie34d86aecf181e73867a14864d75e0db8a8f48f3
diff --git a/utils/misc/src/main/java/org/onlab/util/HexDump.java b/utils/misc/src/main/java/org/onlab/util/HexDump.java
index b6759ed..692d688 100644
--- a/utils/misc/src/main/java/org/onlab/util/HexDump.java
+++ b/utils/misc/src/main/java/org/onlab/util/HexDump.java
@@ -26,7 +26,7 @@
  */
 @Deprecated
 public final class HexDump {
-    protected static final Logger log = LoggerFactory.getLogger(HexDump.class);
+    private static final Logger log = LoggerFactory.getLogger(HexDump.class);
 
     private HexDump() {
     }