Revert "ffmpeg: add patch for backport: mpegts-do-not-set-pts-for-missing-dts"

This reverts commit 72b172ee52103a0f4345051e64a29ad6f5b04cc7.
Revert "mpegts: do not set pts for missing dts in video streams"

This reverts commit 55562c856bbcca1b8e1ac1813209de7154570443.
avformat/utils: detect MPEG streams with faulty DTS and discard affected DTS

Fixes issue2.ts

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
ffmpeg: backport detect MPEG streams with faulty DTS and discard
Merge pull request #4317 from FernetMenta/dts

ffmpeg: change due to revert of a backported commit