Input: remove cdev from input_dev structure

Cdev field was obsolete and provided only for backward compatibility
since conversion of input core from class devices to regular devices.
It is time to remove it.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

drivers/input/input.c

@@ -1395,9 +1395,6 @@ int input_register_device(struct input_dev *dev)
 	snprintf(dev->dev.bus_id, sizeof(dev->dev.bus_id),
 		 "input%ld", (unsigned long) atomic_inc_return(&input_no) - 1);
 
-	if (dev->cdev.dev)
-		dev->dev.parent = dev->cdev.dev;
-
 	error = device_add(&dev->dev);
 	if (error)
 		return error;

include/linux/input.h

@@ -1018,7 +1018,6 @@ struct ff_effect {
  * @going_away: marks devices that are in a middle of unregistering and
  *	causes input_open_device*() fail with -ENODEV.
  * @dev: driver model's view of this device
- * @cdev: union for struct device pointer
  * @h_list: list of input handles associated with the device. When
  *	accessing the list dev->mutex must be held
  * @node: used to place the device onto input_dev_list
@@ -1083,9 +1082,6 @@ struct input_dev {
 	int going_away;
 
 	struct device dev;
-	union {			/* temporarily so while we switching to struct device */
-		struct device *dev;
-	} cdev;
 
 	struct list_head	h_list;
 	struct list_head	node;