bundle_firmware: Drop the postload implementation

This feature is not used anymore and can be dropped. Drop the implementation
code.

BUG=chromium:595715
BRANCH=none
TEST=emerge-kevin chromeos-bootimage; see that it still completes

Change-Id: Iaf84f870f71b22aa2ca1e01da904aade1fc280d0
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/344801
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
1 file changed