libfdk-aacenc: remove redundant log message if ff_alloc_packet2 fails

The whole point of ff_alloc_packet2 is to not bloat code with
duplicated error messages.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

libavcodec/libfdk-aacenc.c

@@ -315,10 +315,8 @@ static int aac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
     }
 
     /* The maximum packet size is 6144 bits aka 768 bytes per channel. */
-    if ((ret = ff_alloc_packet2(avctx, avpkt, FFMAX(8192, 768 * avctx->channels)))) {
-        av_log(avctx, AV_LOG_ERROR, "Error getting output packet\n");
+    if ((ret = ff_alloc_packet2(avctx, avpkt, FFMAX(8192, 768 * avctx->channels))))
         return ret;
-    }
 
     out_ptr                   = avpkt->data;
     out_buffer_size           = avpkt->size;