[media] DocBook: remove references to the dropped VIDIOC_DBG_G_CHIP_IDENT ioctl

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
5 files changed