CHERRY-PICK (factory-2338.B) Disable system time check.

Disable system time check as system time is not preserved across power
cycles. This fix is only for Lucas factory branch.

BUG=chrome-os-partner:9937
TEST=Manually run 'gooftool finalize'.

CHERRY-PICK Change-Id: If2cba8ce92504f88390896fbcfed87e50907c3f3

Change-Id: I34551e41cf6d6bfe396805440d815ce9b635166c
Reviewed-on: https://gerrit.chromium.org/gerrit/26001
Tested-by: Cheng-Yi Chiang <cychiang@chromium.org>
Reviewed-by: Chinyue Chen <chinyue@chromium.org>
Reviewed-by: Katie Roberts-Hoffman <katierh@chromium.org>