media: media-device: remove driver_version

Since the driver_version field in struct media_device is no longer
used, just remove it.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/media-device.c

@@ -833,8 +833,6 @@ void media_device_pci_init(struct media_device *mdev,
 	mdev->hw_revision = (pci_dev->subsystem_vendor << 16)
 			    | pci_dev->subsystem_device;
 
-	mdev->driver_version = LINUX_VERSION_CODE;
-
 	media_device_init(mdev);
 }
 EXPORT_SYMBOL_GPL(media_device_pci_init);
@@ -862,7 +860,6 @@ void __media_device_usb_init(struct media_device *mdev,
 		strlcpy(mdev->serial, udev->serial, sizeof(mdev->serial));
 	usb_make_path(udev, mdev->bus_info, sizeof(mdev->bus_info));
 	mdev->hw_revision = le16_to_cpu(udev->descriptor.bcdDevice);
-	mdev->driver_version = LINUX_VERSION_CODE;
 
 	media_device_init(mdev);
 }

include/media/media-device.h

@@ -68,7 +68,6 @@ struct media_device_ops {
  * @serial:	Device serial number (optional)
  * @bus_info:	Unique and stable device location identifier
  * @hw_revision: Hardware device revision
- * @driver_version: Device driver version
  * @topology_version: Monotonic counter for storing the version of the graph
  *		topology. Should be incremented each time the topology changes.
  * @id:		Unique ID used on the last registered graph object
@@ -134,7 +133,6 @@ struct media_device {
 	char serial[40];
 	char bus_info[32];
 	u32 hw_revision;
-	u32 driver_version;
 
 	u64 topology_version;