V4L/DVB (5747): Tea5761: remove duplicated "#include <media/tuner.h>"

The line, "#include <media/tuner.h>" appears twice.
This patch removes the second occurance.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>