remove autoware_auto_msgs

Signed-off-by: Yutaka Kondo <yutaka.kondo@youtalk.jp>

Author: youtalk

build_depends.repos

@@ -1,8 +1,4 @@
 repositories:
-  autoware_auto_msgs:
-    type: git
-    url: https://github.com/tier4/autoware_auto_msgs.git
-    version: tier4/main
   autoware_cmake:
     type: git
     url: https://github.com/autowarefoundation/autoware_cmake.git