Original commit message from CVS:
no cothreads doc so removing it from the spec
%{_datadir}/gtk-doc/html/gstreamer/gstpad.html
%{_datadir}/gtk-doc/html/gstreamer/gstpipeline.html
%{_datadir}/gtk-doc/html/gstreamer/gstpluginfeature.html
-%{_datadir}/gtk-doc/html/gstreamer/gstreamer-cothreads.html
+# %{_datadir}/gtk-doc/html/gstreamer/gstreamer-cothreads.html
%{_datadir}/gtk-doc/html/gstreamer/gstreamer-gstbuffer.html
%{_datadir}/gtk-doc/html/gstreamer/gstreamer-gstbufferpool.html
%{_datadir}/gtk-doc/html/gstreamer/gstreamer-gstcaps.html