ide: remove read-only ->atapi_overlap field from ide_drive_t

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

drivers/ide/ide.c

@@ -585,7 +585,6 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
 			return ide_get_identity_ioctl(drive, cmd, arg);
 		case HDIO_GET_NICE:
 			return put_user(drive->dsc_overlap	<<	IDE_NICE_DSC_OVERLAP	|
-					drive->atapi_overlap	<<	IDE_NICE_ATAPI_OVERLAP	|
 					drive->nice1 << IDE_NICE_1,
 					(long __user *) arg);
 #ifdef CONFIG_IDE_TASK_IOCTL

include/linux/ide.h

@@ -415,7 +415,6 @@ struct ide_drive_s {
 	unsigned forced_geom	: 1;	/* 1 if hdx=c,h,s was given at boot */
 	unsigned no_unmask	: 1;	/* disallow setting unmask bit */
 	unsigned no_io_32bit	: 1;	/* disallow enabling 32bit I/O */
-	unsigned atapi_overlap	: 1;	/* ATAPI overlap (not supported) */
 	unsigned doorlocking	: 1;	/* for removable only: door lock/unlock works */
 	unsigned nodma		: 1;	/* disallow DMA */
 	unsigned blocked        : 1;	/* 1=powermanagment told us not to do anything, so sleep nicely */