--- old/src/hotspot/share/gc/cms/parNewGeneration.hpp	2018-10-29 21:54:59.322189296 -0700
+++ new/src/hotspot/share/gc/cms/parNewGeneration.hpp	2018-10-29 21:54:59.126190380 -0700
@@ -346,11 +346,6 @@
 
  protected:
 
-  bool _survivor_overflow;
-
-  bool survivor_overflow() { return _survivor_overflow; }
-  void set_survivor_overflow(bool v) { _survivor_overflow = v; }
-
   void restore_preserved_marks();
 
  public: