chore: update maintainer information

Signed-off-by: mitsudome-r <ryohsuke.mitsudome@tier4.jp>

Author: mitsudome-r

Diff for: localization/autoware_stop_filter/package.xml

@@ -12,7 +12,6 @@
   <maintainer email="shintaro.sakoda@tier4.jp">Shintaro Sakoda</maintainer>
   <maintainer email="ryu.yamamoto@tier4.jp">Ryu Yamamoto</maintainer>
   <license>Apache License 2.0</license>
-  <author email="koji.minoda@tier4.jp">Koji Minoda</author>
 
   <buildtool_depend>ament_cmake_auto</buildtool_depend>
   <buildtool_depend>autoware_cmake</buildtool_depend>