useless as this file wont be compiled if this is not true

Originally committed as revision 7816 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/mpegaudio.c

@@ -785,7 +785,6 @@ static int MPA_encode_close(AVCodecContext *avctx)
     return 0;
 }
 
-#ifdef CONFIG_MP2_ENCODER
 AVCodec mp2_encoder = {
     "mp2",
     CODEC_TYPE_AUDIO,
@@ -796,6 +795,5 @@ AVCodec mp2_encoder = {
     MPA_encode_close,
     NULL,
 };
-#endif // CONFIG_MP2_ENCODER
 
 #undef FIX