stub: drop abstract_arrangement (158756e921)

And also gnore delete_same_facet_edge_pairs as it's more of an interanl API.

src/ifcopenshell-python/ifcopenshell/ifcopenshell_wrapper.pyi

@@ -643,14 +643,6 @@ class XmlSerializer:
 
 class _SwigNonDynamicMeta(type): ...
 
-class abstract_arrangement:
-    def __init__(self, *args, **kwargs): ...
-    def get_face_pairs(self): ...
-    def merge(self, edge_indices): ...
-    def num_edges(self): ...
-    def num_faces(self): ...
-    def write(self, polygons, progress): ...
-
 class aggregation_type(parameter_type):
     def __init__(self, type_of_aggregation, bound1, bound2, type_of_element): ...
     array_type: Any