Don't check the return value of decode_cabac_residual since it always

returns 0. This leads to a 0.4% speed-up.
Patch by Alexander Strange  astrange at_ ithinksw dot com
Original thread:
Date: Aug 11, 2007 11:44 PM
Subject: [FFmpeg-devel] [PATCH] h264: don't check decode_cabac_residual return

Originally committed as revision 10084 to svn://svn.ffmpeg.org/ffmpeg/trunk