ide: remove unused ide_hwgroup_t fields

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

include/linux/ide.h

@@ -628,8 +628,7 @@ typedef int (ide_expiry_t)(ide_drive_t *);
 typedef struct hwgroup_s {
 		/* irq handler, if active */
 	ide_startstop_t	(*handler)(ide_drive_t *);
-		/* irq handler, suspended if active */
-	ide_startstop_t	(*handler_save)(ide_drive_t *);
+
 		/* BOOL: protects all fields below */
 	volatile int busy;
 		/* BOOL: wake us up on timer expiry */
@@ -644,25 +643,18 @@ typedef struct hwgroup_s {
 		/* ptr to current hwif in linked-list */
 	ide_hwif_t *hwif;
 
-		/* for pci chipsets */
-	struct pci_dev *pci_dev;
-
 		/* current request */
 	struct request *rq;
+
 		/* failsafe timer */
 	struct timer_list timer;
-		/* local copy of current write rq */
-	struct request wrq;
 		/* timeout value during long polls */
 	unsigned long poll_timeout;
 		/* queried upon timeouts */
 	int (*expiry)(ide_drive_t *);
-		/* ide_system_bus_speed */
-	int pio_clock;
+
 	int req_gen;
 	int req_gen_timer;
-
-	unsigned char cmd_buf[4];
 } ide_hwgroup_t;
 
 typedef struct ide_driver_s ide_driver_t;