local-metadata: Don't say we support UPnP URLs
local-metadata: Don't say we support UPnP URLs

Because we don't want to use UPnP URLs for guessing metadata.

https://bugzilla.gnome.org/show_bug.cgi?id=673916

GNOME/grilo-plugins,kyoushuu/grilo-plugins,vrutkovs/grilo-plugins,MathieuDuponchelle/grilo-plugins,MikePetullo/grilo-plugins,vrutkovs/grilo-plugins,jasuarez/grilo-plugins,jasuarez/grilo-plugins,grilofw/grilo-plugins,kyoushuu/grilo-plugins,MathieuDuponchelle/grilo-plugins,grilofw/grilo-plugins,MathieuDuponchelle/grilo-plugins,vrutkovs/grilo-plugins,MathieuDuponchelle/grilo-plugins,MikePetullo/grilo-plugins,GNOME/grilo-plugins,MikePetullo/grilo-plugins,vrutkovs/grilo-plugins,kyoushuu/grilo-plugins