--- old/src/hotspot/share/runtime/objectMonitor.cpp	2018-09-17 23:28:29.335747810 -0700
+++ new/src/hotspot/share/runtime/objectMonitor.cpp	2018-09-17 23:28:29.123747817 -0700
@@ -101,7 +101,6 @@
 // The knob* variables are effectively final.  Once set they should
 // never be modified hence.  Consider using __read_mostly with GCC.
 
-int ObjectMonitor::Knob_VerifyInUse  = 0;
 int ObjectMonitor::Knob_VerifyMatch  = 0;
 int ObjectMonitor::Knob_SpinLimit    = 5000;    // derived by an external tool -