Remove outdated code that instead of preventing now causes crashes.
The problem it was trying to catch (next filter not supporting slices)
was fixed already in r10141 (by implementing a fallback version
of vf_next_draw_slice).
This should fix Debian Bug#683907.
Example command-line:
mencoder big_buck_bunny_480p_stereo.avi -o a.mpg -vf crop=346:240:2:24 -oac copy -ovc lavc
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35061 b3059339-0415-0410-9bf9-f77b7e298cf2
Author: reimar
Conflicts:
libmpcodecs/vf_expand.c