[media] gspca: Remove gspca_auto_gain_n_exposure function

Now that the pac207 driver has been converted to the control framework, there
are no remaining users.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2 files changed