Revert "HADOOP-13717. Normalize daemonization behavior of the diskbalancer with balancer and mover."

This reverts commit bd7f5911c726c505a654d5d30b7dc5a92dca05bd.

hadoop-hdfs-project/hadoop-hdfs/src/main/bin/hdfs

@@ -116,7 +116,6 @@ function hdfscmd_case
       HADOOP_CLASSNAME=org.apache.hadoop.hdfs.tools.DFSAdmin
     ;;
     diskbalancer)
-      HADOOP_SUBCMD_SUPPORTDAEMONIZATION="true"
       HADOOP_CLASSNAME=org.apache.hadoop.hdfs.tools.DiskBalancerCLI
     ;;
     envvars)