Remove unused symbol.

Patch by Diego 'Flameeyes' Pettenò flameeyes ¤ gmail ! com

Originally committed as revision 11442 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/mpegvideo.h

@@ -727,8 +727,6 @@ int ff_dct_common_init(MpegEncContext *s);
 void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
                        const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra);
 
-extern enum PixelFormat ff_yuv420p_list[2];
-
 void ff_init_block_index(MpegEncContext *s);
 
 static inline void ff_update_block_index(MpegEncContext *s){

libavcodec/mpegvideo_enc.c

@@ -64,8 +64,6 @@ static const uint16_t aanscales[64] = {
 static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
 static uint8_t default_fcode_tab[MAX_MV*2+1];
 
-enum PixelFormat ff_yuv420p_list[2]= {PIX_FMT_YUV420P, -1};
-
 void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
                            const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
 {