h264: stop testing whether the reference count changes in ff_set_ref_count()

It is no longer necessary after 741b494fa8

libavcodec/h264.c

@@ -1005,14 +1005,9 @@ int ff_set_ref_count(H264Context *h, H264SliceContext *sl)
         return AVERROR_INVALIDDATA;
     }
 
-    if (list_count   != sl->list_count   ||
-        ref_count[0] != sl->ref_count[0] ||
-        ref_count[1] != sl->ref_count[1]) {
     sl->ref_count[0] = ref_count[0];
     sl->ref_count[1] = ref_count[1];
     sl->list_count   = list_count;
-        return 1;
-    }
 
     return 0;
 }