Remove obsolete link to vorbis.com.
There remains a link from the Vorbis RTP format RFC, which is
an immutable published document. We'll have to maintain a
redirect for the sake of that link.
@@ -63,8 +63,6 @@ Vorbis's homepage is located at 'https://www.xiph.org/vorbis/'.
Up to date technical documents, contact information, source code and
pre-built utilities may be found there.
-The user website for Ogg Vorbis software and audio is http://vorbis.com/
-
## Building ##
#### Building from master ####
