fix unused inport

Signed-off-by: Takagi, Isamu <isamu.takagi@tier4.jp>

Author: isamu-takagi

system/autoware_default_adapi/launch/default_adapi.launch.py

@@ -17,7 +17,6 @@
 from launch.substitutions import LaunchConfiguration
 from launch.substitutions import PathJoinSubstitution
 from launch_ros.actions import ComposableNodeContainer
-from launch_ros.actions import Node
 from launch_ros.descriptions import ComposableNode
 from launch_ros.parameter_descriptions import ParameterFile
 from launch_ros.substitutions import FindPackageShare