ide: remove unused variables from drivers/ide/ppc/pmac.c

Removes these warnings:

/home/sfr/kernels/linus/drivers/ide/ppc/pmac.c: In function 'pmac_ide_dma_check':
/home/sfr/kernels/linus/drivers/ide/ppc/pmac.c:1807: warning: unused variable 'map'
/home/sfr/kernels/linus/drivers/ide/ppc/pmac.c:1805: warning: unused variable 'pmif'

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: paulus@samba.org
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/ppc/pmac.c

@@ -1802,9 +1802,7 @@ pmac_ide_dma_check(ide_drive_t *drive)
 {
 	struct hd_driveid *id = drive->id;
 	ide_hwif_t *hwif = HWIF(drive);
-	pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)hwif->hwif_data;
 	int enable = 1;
-	int map;
 	drive->using_dma = 0;
 
 	if (drive->media == ide_floppy)