--- a/src/hotspot/share/runtime/vm_operations.cpp	Fri Jul 06 06:26:25 2018 -0700
+++ b/src/hotspot/share/runtime/vm_operations.cpp	Fri Jul 06 09:10:07 2018 -0400
@@ -192,12 +192,6 @@
 
 #endif // !PRODUCT
 
-void VM_UnlinkSymbols::doit() {
-  JavaThread *thread = (JavaThread *)calling_thread();
-  assert(thread->is_Java_thread(), "must be a Java thread");
-  SymbolTable::unlink();
-}
-
 void VM_Verify::doit() {
   Universe::heap()->prepare_for_verify();
   Universe::verify();