fix arg passing way

Signed-off-by: Shunsuke Miura <shunsuke.miura@tier4.jp>

autoware_launch/launch/components/tier4_perception_component.launch.xml

@@ -9,8 +9,6 @@
     description="options: obstacle_pointcloud, occupancy_grid (occupancy_grid_map_method must be laserscan_based_occupancy_grid_map)"
   />
   <arg name="data_path" default="$(env HOME)/autoware_data" description="packages data and artifacts directory path"/>
-  <arg name="traffic_light_recognition/fusion_only" default="false" description="Whether to launch only fusion part of the signal recognition related nodes"/>
-  <arg name="traffic_light_recognition/enable_fine_detection" description="enable traffic light fine detection"/>
 
   <include file="$(find-pkg-share tier4_perception_launch)/launch/perception.launch.xml">
     <arg name="mode" value="$(var perception_mode)"/>
@@ -155,7 +153,7 @@
     <!-- traffic light recognition -->
     <arg name="use_traffic_light_recognition" value="true"/>
     <arg name="traffic_light_recognition/enable_fine_detection" value="$(var traffic_light_recognition/enable_fine_detection)"/>
-    <arg name="traffic_light_recognition/fusion_only" value="$(var traffic_light_recognition/fusion_only)"/>
+    <arg name="traffic_light_recognition/fusion_only" value="false"/>
     <arg name="traffic_light_image_number" value="1"/>
 
     <arg name="traffic_light_arbiter_param_path" value="$(find-pkg-share autoware_launch)/config/perception/traffic_light_arbiter/traffic_light_arbiter.param.yaml"/>