media: staging: ipu3-imgu: No need for kernel-doc comments in driver struct

This part is rather trivial so adding more comments isn't really helpful.
Reported-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/staging/media/ipu3/ipu3.h

@@ -63,11 +63,6 @@ struct imgu_node_mapping {
 	const char *name;
 };
 
-/**
- * struct imgu_video_device
- * each node registers as video device and maintains its
- * own vb2_queue.
- */
 struct imgu_video_device {
 	const char *name;
 	bool output;