--- old/src/hotspot/share/runtime/interfaceSupport.cpp	2018-07-05 13:41:26.292422734 -0400
+++ new/src/hotspot/share/runtime/interfaceSupport.cpp	2018-07-05 13:41:26.080422724 -0400
@@ -66,9 +66,6 @@
   if (ZombieALot) {
     InterfaceSupport::zombieAll();
   }
-  if (UnlinkSymbolsALot) {
-    InterfaceSupport::unlinkSymbols();
-  }
   // do verification AFTER potential deoptimization
   if (VerifyStack) {
     InterfaceSupport::verify_stack();
@@ -208,11 +205,6 @@
   zombieAllCounter++;
 }
 
-void InterfaceSupport::unlinkSymbols() {
-  VM_UnlinkSymbols op;
-  VMThread::execute(&op);
-}
-
 void InterfaceSupport::deoptimizeAll() {
   // This method is called by all threads when a thread make
   // transition to VM state (for example, runtime calls).