This reverts commit4ef754772e, relands single root filesystem that is needed for reusable platform kernel files, that is safe to land now since dart rolla2ebb14376has the fix for previously broken dependency file generation.
This reverts commit4ef754772e, relands single root filesystem that is needed for reusable platform kernel files, that is safe to land now since dart rolla2ebb14376has the fix for previously broken dependency file generation.