HDFS-2976. Merging change r1609849 from trunk to branch-2.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1609850 13f79535-47bb-0310-9956-ffa450edef68

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -29,6 +29,9 @@ Release 2.6.0 - UNRELEASED
 
     HDFS-5202. Support Centralized Cache Management on Windows. (cnauroth)
 
+    HDFS-2976. Remove unnecessary method (tokenRefetchNeeded) in DFSClient.
+    (Uma Maheswara Rao G)
+
   OPTIMIZATIONS
 
   BUG FIXES