Remove a child.
Remove a child of a internal keeping. When the child is effectively removed the event Efl.Model.child,removed is then raised to give a chance for listeners to perform any cleanup and/or update references.
Since 1.23
child_del @pure_virtual { params { @in child: Efl.Object; } }
void efl_model_child_del(Eo *obj, Efl_Object *child);