The wm module in sugar-toolkit-gtk3 has been reimplemented
in C and made available through introspection. The same was
hard to achieve directly using the Gdk API.
We can drop wm.py and the wrapper around gdk_property_change.
Signed-off-by: Daniel Narvaez <dwnarvaez@gmail.com>
Acked-by: Simon Schampijer <simon@laptop.org>
