--- a/src/hotspot/share/gc/z/zOopClosures.cpp	Mon Jun 25 12:44:52 2018 +0200
+++ b/src/hotspot/share/gc/z/zOopClosures.cpp	Sat May 26 06:59:49 2018 +0200
@@ -69,6 +69,3 @@
   ZVerifyHeapOopClosure cl(o);
   o->oop_iterate(&cl);
 }
-
-// Generate Z specialized oop_oop_iterate functions.
-SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_Z(ALL_KLASS_OOP_OOP_ITERATE_DEFN)