media: get rid of i2c-addr.h

In the past, the same I2C address were used on multiple places.
After I2C rebinding changes, this is no longer needed. So, we
can just get rid of this header, placing the I2C address where
they belong, e. g. either at bttv driver or at tvtuner.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>