Remove left-overs from header file.
Move some functions only used by PReP to hw/ppc/prep.c
Signed-off-by: NHervé Poussineau <hpoussin@reactos.org>
CC: Andreas Färber <afaerber@suse.de>
Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>