Remove unnecessary casts in type object initializers.
diff --git a/Objects/descrobject.c b/Objects/descrobject.c
index 9494062..bfa25e9 100644
--- a/Objects/descrobject.c
+++ b/Objects/descrobject.c
@@ -480,7 +480,7 @@
 	0,					/* tp_as_sequence */
 	0,					/* tp_as_mapping */
 	0,					/* tp_hash */
-	(ternaryfunc)0,				/* tp_call */
+	0,					/* tp_call */
 	0,					/* tp_str */
 	PyObject_GenericGetAttr,		/* tp_getattro */
 	0,					/* tp_setattro */
@@ -518,7 +518,7 @@
 	0,					/* tp_as_sequence */
 	0,					/* tp_as_mapping */
 	0,					/* tp_hash */
-	(ternaryfunc)0,				/* tp_call */
+	0,					/* tp_call */
 	0,					/* tp_str */
 	PyObject_GenericGetAttr,		/* tp_getattro */
 	0,					/* tp_setattro */