lavc: Drop deprecated way of setting audio delay on encode

Deprecated in 08/2014.

libavcodec/encode.c

@@ -194,10 +194,6 @@ int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
 end:
     av_frame_free(&padded_frame);
 
-#if FF_API_AUDIOENC_DELAY
-    avctx->delay = avctx->initial_padding;
-#endif
-
     return ret;
 }
 

libavcodec/utils.c

@@ -646,11 +646,6 @@ FF_ENABLE_DEPRECATION_WARNINGS
         }
     }
 
-#if FF_API_AUDIOENC_DELAY
-    if (av_codec_is_encoder(avctx->codec))
-        avctx->delay = avctx->initial_padding;
-#endif
-
     if (av_codec_is_decoder(avctx->codec)) {
         /* validate channel layout from the decoder */
         if (avctx->channel_layout) {

libavcodec/version.h

@@ -47,9 +47,6 @@
  * the public API and may change, break or disappear at any time.
  */
 
-#ifndef FF_API_AUDIOENC_DELAY
-#define FF_API_AUDIOENC_DELAY    (LIBAVCODEC_VERSION_MAJOR < 58)
-#endif
 #ifndef FF_API_AVCTX_TIMEBASE
 #define FF_API_AVCTX_TIMEBASE    (LIBAVCODEC_VERSION_MAJOR < 58)
 #endif