remove old draw_edges declaration cruft

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@12312 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavcodec/mpegvideo.h

@@ -692,7 +692,6 @@ void MPV_common_init_mlib(MpegEncContext *s);
 void MPV_common_init_mmi(MpegEncContext *s);
 void MPV_common_init_armv4l(MpegEncContext *s);
 void MPV_common_init_altivec(MpegEncContext *s);
-extern void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w);
 void ff_clean_intra_table_entries(MpegEncContext *s);
 void ff_draw_horiz_band(MpegEncContext *s, int y, int h);
 void ff_emulated_edge_mc(uint8_t *buf, uint8_t *src, int linesize, int block_w, int block_h,