chore: remove owner

Signed-off-by: yoshiri <yoshiyoshidetteiu@gmail.com>

Author: YoshiRi

perception/map_based_prediction/package.xml

@@ -5,7 +5,6 @@
   <version>0.1.0</version>
   <description>This package implements a map_based_prediction</description>
   <maintainer email="tomoya.kimura@tier4.jp">Tomoya Kimura</maintainer>
-  <maintainer email="shunsuke.miura@tier4.jp">Shunsuke Miura</maintainer>
   <maintainer email="yoshi.ri@tier4.jp">Yoshi Ri</maintainer>
   <maintainer email="takayuki.murooka@tier4.jp">Takayuki Murooka</maintainer>
   <maintainer email="kyoichi.sugahara@tier4.jp">Kyoichi Sugahara</maintainer>