Remove unused fields: ioctl, ata[pi]_prebuilder.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
        int             (*end_request)(ide_drive_t *, int, int);
        ide_startstop_t (*error)(ide_drive_t *, struct request *rq, u8, u8);
        ide_startstop_t (*abort)(ide_drive_t *, struct request *rq);
-       int             (*ioctl)(ide_drive_t *, struct inode *, struct file *, unsigned int, unsigned long);
        ide_proc_entry_t        *proc;
-       void            (*ata_prebuilder)(ide_drive_t *);
-       void            (*atapi_prebuilder)(ide_drive_t *);
        struct device_driver    gen_driver;
 } ide_driver_t;