Revert "feat(autoware_launch): use mrm handler by default (#1043)"

This reverts commit d076aa5.

Author: kyoichi-sugahara

autoware_launch/launch/components/tier4_system_component.launch.xml

@@ -29,7 +29,7 @@
     <arg name="system_monitor_process_monitor_param_path" value="$(find-pkg-share autoware_launch)/config/system/system_monitor/process_monitor.param.yaml"/>
     <arg name="system_monitor_voltage_monitor_param_path" value="$(find-pkg-share autoware_launch)/config/system/system_monitor/voltage_monitor.param.yaml"/>
 
-    <arg name="use_emergency_handler" value="false"/>
+    <arg name="use_emergency_handler" value="true"/>
     <arg name="mrm_handler_param_path" value="$(find-pkg-share autoware_launch)/config/system/mrm_handler/mrm_handler.param.yaml"/>
     <arg name="diagnostic_graph_aggregator_param_path" value="$(var diagnostic_graph_aggregator_param_path)"/>
     <arg name="diagnostic_graph_aggregator_graph_path" value="$(var diagnostic_graph_aggregator_graph_path)"/>