How to find dependency of Google Plugin auto resolve?

Im current;y trying to optimize my build. during the development process unconsiously we add some 3rd party in my project, which that 3rd party require some depedency which automatically added to project.

How to find which 3rd party using this jar files? the jar files is quite big, but i don’t want to broke the project :")
is there a way to figure out which was using it?