V4L/DVB (4683): Norm_notchfilter is used on just one point and argument is bogus

Removed norm_notchfilter function. All the code is bound to 4 x FSC, so, any
other filter won't work fine.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
1 file changed