image_signing: remove unpack_firmwarefd.sh script

Looks like an old script from Mario.  Won't run on modern chromebooks
anyway.

Not installed on any devices.

BUG=chromium:1084003,chromium:1085310
BRANCH=none
TEST=emerge vboot_reference

Signed-off-by: Jack Rosenthal <jrosenth@chromium.org>
Change-Id: I4b68183bc9bc943f273630cf12c52801a74df5be
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/2210762
Reviewed-by: Joel Kitching <kitching@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
1 file changed