media: vimc: remove unused struct declaration vimc_platform_data

the struct vimc_platform_data is not used anymore and can be removed.
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/platform/vimc/vimc-common.h

@@ -57,21 +57,6 @@ do {									\
 		(fmt)->xfer_func = V4L2_XFER_FUNC_DEFAULT;		\
 } while (0)
 
-/**
- * struct vimc_platform_data - platform data to components
- *
- * @entity_name:	The name of the entity to be created
- *
- * Board setup code will often provide additional information using the device's
- * platform_data field to hold additional information.
- * When injecting a new platform_device in the component system the core needs
- * to provide to the corresponding submodules the name of the entity that should
- * be used when registering the subdevice in the Media Controller system.
- */
-struct vimc_platform_data {
-	char entity_name[32];
-};
-
 /**
  * struct vimc_pix_map - maps media bus code with v4l2 pixel format
  *