V4L/DVB: ngene: Code cleanup

Remove/comment-out unused code, make some functions/declarations static.

Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --cc drivers/media/dvb/ngene/ngene-core.c
Simple merge

diff --cc drivers/media/dvb/ngene/ngene-ioctls.h
Simple merge

diff --cc drivers/media/dvb/ngene/ngene-snd.c
Simple merge

diff --cc drivers/media/dvb/ngene/ngene-v4l2.c
Simple merge

diff --cc drivers/media/dvb/ngene/ngene.h
Simple merge