Remove battery_cutoff scripts.

The battery cutoff scripts have been moved to src/platform/factory/sh/cutoff.

BUG=chromium:577601
TEST=build_packages --board link; build_image factory_install --board link

Change-Id: Icbd8c35c97e271e043a5969eaffafcd62b9a0bbe
Reviewed-on: https://chromium-review.googlesource.com/410462
Commit-Ready: Hung-Te Lin <hungte@chromium.org>
Tested-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
4 files changed