drm: Remove dev->kdriver

With the last patch to ditch the ->get_name callbacks the last
user is now gone.
Reviewed-by: NThierry Reding <treding@nvidia.com>
Reviewed-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/drm_pci.c

@@ -364,7 +364,6 @@ int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver)
 
 	DRM_DEBUG("\n");
 
-	driver->kdriver.pci = pdriver;
 	driver->bus = &drm_pci_bus;
 
 	if (driver->driver_features & DRIVER_MODESET)

drivers/gpu/drm/drm_platform.c

@@ -121,7 +121,6 @@ int drm_platform_init(struct drm_driver *driver, struct platform_device *platfor
 {
 	DRM_DEBUG("\n");
 
-	driver->kdriver.platform_device = platform_device;
 	driver->bus = &drm_platform_bus;
 	return drm_get_platform_dev(platform_device, driver);
 }

drivers/gpu/drm/drm_usb.c

@@ -51,7 +51,6 @@ int drm_usb_init(struct drm_driver *driver, struct usb_driver *udriver)
 	int res;
 	DRM_DEBUG("\n");
 
-	driver->kdriver.usb = udriver;
 	driver->bus = &drm_usb_bus;
 
 	res = usb_register(udriver);

include/drm/drmP.h

@@ -963,11 +963,6 @@ struct drm_driver {
 	const struct drm_ioctl_desc *ioctls;
 	int num_ioctls;
 	const struct file_operations *fops;
-	union {
-		struct pci_driver *pci;
-		struct platform_device *platform_device;
-		struct usb_driver *usb;
-	} kdriver;
 	struct drm_bus *bus;
 
 	/* List of devices hanging off this driver with stealth attach. */