The related code seems to have been useful a long time ago (the need to use
an RLE file and to reduce the number of colours to 16 has been dropped as of
syslinux version 3.62). So replace obsolete code with a simple cp command.
Signed-off-by: Wolfgang Schweer <wschweer@arcor.de>
We don't need to do much here, just pass on what the d-i build already
set up for us. Previously, we assumed too much knowledge about the
contents of the efi.img we were given. Now simply copy all of it.
(This is only really necessary due to us wanting to merge the efi.img
for multiple architectures. This is likely to get harder with
clashing files... :-/)