This reverts commit f70b9d92413940739ed6f6cd468e6d09702939d1. (cherry picked from commit 67d2875f8fe83cdeb621856031eb0892a65ec946) Conflicts: hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/web/webhdfs/WebHdfsHandler.java