this existed only to provide the methods for Efl.Ui.Layout_Part and fill
in implementation for some legacy functions which should probably not be
supported going forward
the corresponding methods have been merged into efl_ui_widget and the
legacy functions no longer use eolian-generated implementations
Reviewed-by: WooHyun Jung <woohyun0705@gmail.com>
Differential Revision: https://phab.enlightenment.org/D7899