HDFS-6517. Remove hadoop-metrics2.properties from hdfs project (Akira AJISAKA via aw)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1616261 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6517. Remove hadoop-metrics2.properties from hdfs project (Akira AJISAKA via aw)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1616262 13f79535-47bb-0310-9956-ffa450edef68