[media] vivid: drop format description

The format description is now filled in by the core, so we can
drop this in this virtual driver.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --cc drivers/media/platform/vivid/vivid-core.h
Simple merge

diff --cc drivers/media/platform/vivid/vivid-vid-cap.c
Simple merge

diff --cc drivers/media/platform/vivid/vivid-vid-common.c
Simple merge