rv10: remove check that is always true

Signed-off-by: Paul B Mahol <onemda@gmail.com>
lavf: add tee pseudo-muxer.
targa: Fix y check in advance_line

Fixes out of array accesses

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>