AMBARI-8066. ambari-agent shows usage hint on ambari-agent status (aonishuk)

ambari-agent/conf/unix/ambari-agent

@@ -175,7 +175,6 @@ case "$1" in
           tput bold
           echo "$AMBARI_AGENT currently not running"
           tput sgr0
-          echo "Usage: /usr/sbin/ambari-agent {start|stop|restart|status|reset <server_hostname>}"
           retcode=3
         fi
         ;;