fate: remove do_ffmpeg_nocheck function

This function is essentially an alias for run_ffmpeg and is only
used in one place.  This patch removes the function and replaces
the call with the equivalent (simpler) run_ffmpeg call.

Signed-off-by: Mans Rullgard <mans@mansr.com>

tests/lavf-regression.sh

@@ -226,7 +226,7 @@ conversions="yuv420p yuv422p yuv444p yuyv422 yuv410p yuv411p yuvj420p \
              monob yuv440p yuvj440p"
 for pix_fmt in $conversions ; do
     file=${outfile}${pix_fmt}.yuv
-    do_ffmpeg_nocheck $file $DEC_OPTS -r 1 -t 1 -f image2 -vcodec pgmyuv -i $raw_src \
+    run_ffmpeg $DEC_OPTS -r 1 -t 1 -f image2 -vcodec pgmyuv -i $raw_src \
                $ENC_OPTS -f rawvideo -s 352x288 -pix_fmt $pix_fmt $target_path/$raw_dst
     do_ffmpeg $file $DEC_OPTS -f rawvideo -s 352x288 -pix_fmt $pix_fmt -i $target_path/$raw_dst \
                     $ENC_OPTS -f rawvideo -s 352x288 -pix_fmt yuv444p

tests/regression-funcs.sh

@@ -100,13 +100,6 @@ do_ffmpeg_crc()
     echo "$f $(cat $crcfile)" >> $logfile
 }
 
-do_ffmpeg_nocheck()
-{
-    f="$1"
-    shift
-    run_ffmpeg $*
-}
-
 do_video_decoding()
 {
     do_ffmpeg $raw_dst $DEC_OPTS $1 -i $target_path/$file -f rawvideo $ENC_OPTS $2