tracker: Do not check for specific nfo:FileDataObject rdf:type changes
tracker: Do not check for specific nfo:FileDataObject rdf:type changes

It is unreliable to rely on these, as this rdf:type may be deleted after
the one with the tracker:notify property, meaning that this resource isn't
eligible for notification through GraphUpdated anymore.

https://bugzilla.gnome.org/show_bug.cgi?id=764419

MikePetullo/grilo-plugins,MikePetullo/grilo-plugins,grilofw/grilo-plugins,jasuarez/grilo-plugins,MikePetullo/grilo-plugins,GNOME/grilo-plugins,grilofw/grilo-plugins,jasuarez/grilo-plugins,GNOME/grilo-plugins