[PATCH] devfs: Remove the gendisk devfs_name field as it's no longer needed

And remove the now unneeded number field.
Also fixes all drivers that set these fields.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/message/i2o/i2o_block.c

@@ -1089,7 +1089,6 @@ static int i2o_block_probe(struct device *dev)
 	gd = i2o_blk_dev->gd;
 	gd->first_minor = unit << 4;
 	sprintf(gd->disk_name, "i2o/hd%c", 'a' + unit);
-	sprintf(gd->devfs_name, "i2o/hd%c", 'a' + unit);
 	gd->driverfs_dev = &i2o_dev->device;
 
 	/* setup request queue */