py: v4l2: remove unused pixel formats
py: v4l2: remove unused pixel formats

Signed-off-by: Tomi Valkeinen <e1ca4dbb8be1acaf20734fecd2da10ed1d46a9bb@ideasonboard.com>

tomba/kmsxx,tomba/kmsxx,tomba/kmsxx,tomba/kmsxx