media: v4l2-common: get rid of v4l2_routing dead struct

This struct is not used anymore. Get rid of it and update
the documentation about what should still be converted.
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

include/media/v4l2-common.h

@@ -224,10 +224,11 @@ void v4l2_spi_subdev_init(struct v4l2_subdev *sd, struct spi_device *spi,
 
 /* ------------------------------------------------------------------------- */
 
-/* Note: these remaining ioctls/structs should be removed as well, but they are
-   still used in tuner-simple.c (TUNER_SET_CONFIG), cx18/ivtv (RESET) and
-   v4l2-int-device.h (v4l2_routing). To remove these ioctls some more cleanup
-   is needed in those modules. */
+/*
+ * FIXME: these remaining ioctls/structs should be removed as well, but they
+ * are still used in tuner-simple.c (TUNER_SET_CONFIG) and cx18/ivtv (RESET).
+ * To remove these ioctls some more cleanup is needed in those modules.
+ */
 
 /* s_config */
 struct v4l2_priv_tun_config {
@@ -238,11 +239,6 @@ struct v4l2_priv_tun_config {
 
 #define VIDIOC_INT_RESET            	_IOW ('d', 102, u32)
 
-struct v4l2_routing {
-	u32 input;
-	u32 output;
-};
-
 /* ------------------------------------------------------------------------- */
 
 /* Miscellaneous helper functions */