Remove more cruft leftover from nb_coerce.  Rename nb_coerce to
nb_reserved.
diff --git a/Objects/complexobject.c b/Objects/complexobject.c
index fa493d7..a22f22f 100644
--- a/Objects/complexobject.c
+++ b/Objects/complexobject.c
@@ -963,7 +963,7 @@
 	0,					/* nb_and */
 	0,					/* nb_xor */
 	0,					/* nb_or */
-	(coercion)0,				/* nb_coerce */
+	0,					/* nb_reserved */
 	complex_int,				/* nb_int */
 	complex_long,				/* nb_long */
 	complex_float,				/* nb_float */