Remove old ACPI code

it isn't used anywhere, and could be fetched from git/svn history if
needed.

Change-Id: Iaa2ba39af531d0389d7ab1110263ae7ecaa35c70
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/35
Tested-by: build bot (Jenkins)
4 files changed