r/m unwanted logger.debug, pointed out by Michael Greene. patch by jbellis

git-svn-id: https://svn.apache.org/repos/asf/incubator/cassandra/trunk@796559 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/cassandra/utils/FBUtilities.java

@@ -383,7 +383,6 @@ public class FBUtilities
     public static byte[] readByteArray(DataInput in) throws IOException
     {
         int length = in.readInt();
-        logger_.debug(length);
         byte[] bytes = new byte[length];
         in.readFully(bytes);
         return bytes;