[gi] Removed hack to avoid using GLib.Variant.new_variant.
[gi] Removed hack to avoid using GLib.Variant.new_variant.

The bug in the annotations of GLib is fixed now.
https://bugzilla.gnome.org/show_bug.cgi?id=639952
https://bugzilla.gnome.org/show_bug.cgi?id=647796

Distrotech/pygobject,Distrotech/pygobject,Distrotech/pygobject,Distrotech/pygobject