Revert "YARN-5431. TimelineReader daemon start should allow to pass its own reader opts (Rohith Sharma K S via Varun Saxena)"

This reverts commit 8e2614592ddbdb3a1067652bf9dc4a0929d7be16.

hadoop-yarn-project/hadoop-yarn/bin/yarn

@@ -175,8 +175,6 @@ function yarncmd_case
     timelinereader)
       HADOOP_SUBCMD_SUPPORTDAEMONIZATION="true"
       HADOOP_CLASSNAME='org.apache.hadoop.yarn.server.timelineservice.reader.TimelineReaderServer'
-      hadoop_debug "Append YARN_TIMELINEREADER_OPTS onto HADOOP_OPTS"
-      HADOOP_OPTS="${HADOOP_OPTS} ${YARN_TIMELINEREADER_OPTS}"
     ;;
     timelineserver)
       HADOOP_SUBCMD_SUPPORTDAEMONIZATION="true"