Unconditionally enable Theora decoder. It works fine now and there is no

Theora support through libtheora in FFmpeg.

Originally committed as revision 7435 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/vp3.c

@@ -2643,7 +2643,6 @@ AVCodec vp3_decoder = {
     NULL
 };
 
-#ifndef CONFIG_LIBTHEORA
 AVCodec theora_decoder = {
     "theora",
     CODEC_TYPE_VIDEO,
@@ -2656,4 +2655,3 @@ AVCodec theora_decoder = {
     0,
     NULL
 };
-#endif