minimize diff

Signed-off-by: Mamoru Sobue <mamoru.sobue@tier4.jp>

Author: soblin

perception/multi_object_tracker/package.xml

@@ -13,7 +13,6 @@
   <buildtool_depend>eigen3_cmake_module</buildtool_depend>
 
   <depend>autoware_auto_perception_msgs</depend>
-  <depend>diagnostic_updater</depend>
   <depend>eigen</depend>
   <depend>kalman_filter</depend>
   <depend>mussp</depend>