cros_bundle_firmware: remove RequireAllEntries() and CheckProperties()

Nothing is done with what they do to the pack object.

BUG=chromium:595715
BRANCH=none
TEST=Bit-identical build except for timestamps

Change-Id: I93495f7c0373fd8cd88882b287da2eeb228f19e5
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://chromium-review.googlesource.com/404612
Commit-Ready: Patrick Georgi <pgeorgi@chromium.org>
Tested-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
2 files changed