lavc/raw: remove obsolete ff_raw_pix_fmt_tags cruft

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
lavf/mpegts: remove obsolete ff_mpegts_parse_* cruft

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>