avcodec/rv34: Remove always-true/false checks

low_delay is always zero for rv34.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavcodec/rv34.c

@@ -1568,7 +1568,7 @@ static int finish_frame(AVCodecContext *avctx, AVFrame *pict)
     if (HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME))
         ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
 
-    if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) {
+    if (s->pict_type == AV_PICTURE_TYPE_B) {
         if ((ret = av_frame_ref(pict, s->current_picture_ptr->f)) < 0)
             return ret;
         ff_print_debug_info(s, s->current_picture_ptr, pict);
@@ -1613,7 +1613,7 @@ int ff_rv34_decode_frame(AVCodecContext *avctx, AVFrame *pict,
     /* no supplementary picture */
     if (buf_size == 0) {
         /* special case for last picture */
-        if (s->low_delay==0 && s->next_picture_ptr) {
+        if (s->next_picture_ptr) {
             if ((ret = av_frame_ref(pict, s->next_picture_ptr->f)) < 0)
                 return ret;
             s->next_picture_ptr = NULL;