avcodec/videotoolbox: cleanups

No functional changes.

Signed-off-by: Aman Gupta <aman@tmm1.net>

libavcodec/videotoolbox.c

@@ -943,9 +943,7 @@ static int videotoolbox_hevc_end_frame(AVCodecContext *avctx)
     HEVCContext *h = avctx->priv_data;
     AVFrame *frame = h->ref->frame;
     VTContext *vtctx = avctx->internal->hwaccel_priv_data;
-    int ret;
-
-    ret = videotoolbox_common_end_frame(avctx, frame);
+    int ret = videotoolbox_common_end_frame(avctx, frame);
     vtctx->bitstream_size = 0;
     return ret;
 }