[media] media: remove obsolete Media Device Managed resource interfaces

Remove obsolete media_device_get_devres(), media_device_find_devres(),
and media_device_release_devres() interfaces. These interfaces are now
obsolete.

Signed-off-by: Shuah Khan <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/media-device.c

···
 }
 EXPORT_SYMBOL_GPL(media_device_unregister);
 
-static void media_device_release_devres(struct device *dev, void *res)
-{
-}
-
-struct media_device *media_device_get_devres(struct device *dev)
-{
-	struct media_device *mdev;
-
-	mdev = devres_find(dev, media_device_release_devres, NULL, NULL);
-	if (mdev)
-		return mdev;
-
-	mdev = devres_alloc(media_device_release_devres,
-				sizeof(struct media_device), GFP_KERNEL);
-	if (!mdev)
-		return NULL;
-	return devres_get(dev, mdev, NULL, NULL);
-}
-EXPORT_SYMBOL_GPL(media_device_get_devres);
-
-struct media_device *media_device_find_devres(struct device *dev)
-{
-	return devres_find(dev, media_device_release_devres, NULL, NULL);
-}
-EXPORT_SYMBOL_GPL(media_device_find_devres);
-
 #if IS_ENABLED(CONFIG_PCI)
 void media_device_pci_init(struct media_device *mdev,
 			   struct pci_dev *pci_dev,

include/media/media-device.h

···
 void media_device_unregister_entity_notify(struct media_device *mdev,
 					struct media_entity_notify *nptr);
 
-/**
- * media_device_get_devres() -	get media device as device resource
- *				creates if one doesn't exist
- *
- * @dev: pointer to struct &device.
- *
- * Sometimes, the media controller &media_device needs to be shared by more
- * than one driver. This function adds support for that, by dynamically
- * allocating the &media_device and allowing it to be obtained from the
- * struct &device associated with the common device where all sub-device
- * components belong. So, for example, on an USB device with multiple
- * interfaces, each interface may be handled by a separate per-interface
- * drivers. While each interface have its own &device, they all share a
- * common &device associated with the hole USB device.
- */
-struct media_device *media_device_get_devres(struct device *dev);
-
-/**
- * media_device_find_devres() - find media device as device resource
- *
- * @dev: pointer to struct &device.
- */
-struct media_device *media_device_find_devres(struct device *dev);
-
 /* Iterate over all entities. */
 #define media_device_for_each_entity(entity, mdev)			\
 	list_for_each_entry(entity, &(mdev)->entities, graph_obj.list)
···
 					struct media_device *mdev,
 					struct media_entity_notify *nptr)
 {
-}
-static inline struct media_device *media_device_get_devres(struct device *dev)
-{
-	return NULL;
-}
-static inline struct media_device *media_device_find_devres(struct device *dev)
-{
-	return NULL;
 }
 
 static inline void media_device_pci_init(struct media_device *mdev,