Revert "gf_mpd_resolve_url(): last segment duration can be shorter"
Revert "gf_mpd_resolve_url(): last segment duration can be shorter"

This reverts commit 31781d9834f3a89bd48e842a6626bba23d0038ab.

# Conflicts:
#	src/media_tools/mpd.c

rbouqueau/gpac,gpac/gpac,RodolpheFouquet/gpac,RodolpheFouquet/gpac,gpac/gpac,rbouqueau/gpac,gpac/gpac,rbouqueau/gpac,gpac/gpac,gpac/gpac,rbouqueau/gpac,RodolpheFouquet/gpac,rbouqueau/gpac,RodolpheFouquet/gpac,rbouqueau/gpac,rbouqueau/gpac,gpac/gpac,rbouqueau/gpac,gpac/gpac,RodolpheFouquet/gpac,gpac/gpac,RodolpheFouquet/gpac