chore(autoware_trajectory): remove unnecessary tier4_planing_msgs (autowarefoundation#10093)

chore(autoware_trajectory): remove unnecessary tier4 planing msgs

Signed-off-by: kosuke55 <kosuke.tnp@gmail.com>

Author: kosuke55

common/autoware_trajectory/package.xml

@@ -20,7 +20,6 @@
   <depend>lanelet2_core</depend>
   <depend>rclcpp</depend>
   <depend>tf2</depend>
-  <depend>tier4_planning_msgs</depend>
 
   <test_depend>ament_cmake_ros</test_depend>
   <test_depend>ament_lint_auto</test_depend>