V4L/DVB (4014): Remove the spagetti code gotos that aren't useful

Some code had pointless gotos that just didn't make any sense.  They didn't
make the code smaller, or faster, or easier to understand.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>