InputDispatcher: Remove transform for non-pointer events

MotionEvents that are not pointer events should not have a window
transform associated with them because they don't correspond to
on-screen locations.

Bug: 182325974
Test: manual, verify pointer capture in freeform and multi-window modes
Change-Id: I774bbdfacffa68a42e72e3ca52ec4b474560ff34
2 files changed