Remove the simple slicing API. All slicing is now done with slice objects.
diff --git a/Objects/listobject.c b/Objects/listobject.c
index c5a4287..f0e6408 100644
--- a/Objects/listobject.c
+++ b/Objects/listobject.c
@@ -2423,9 +2423,9 @@
(binaryfunc)list_concat, /* sq_concat */
(ssizeargfunc)list_repeat, /* sq_repeat */
(ssizeargfunc)list_item, /* sq_item */
- (ssizessizeargfunc)list_slice, /* sq_slice */
+ 0, /* sq_slice */
(ssizeobjargproc)list_ass_item, /* sq_ass_item */
- (ssizessizeobjargproc)list_ass_slice, /* sq_ass_slice */
+ 0, /* sq_ass_slice */
(objobjproc)list_contains, /* sq_contains */
(binaryfunc)list_inplace_concat, /* sq_inplace_concat */
(ssizeargfunc)list_inplace_repeat, /* sq_inplace_repeat */