Remove JavaThread's is_lock_owned

src/hotspot/share/runtime/javaThread.cpp

@@ -1045,11 +1045,6 @@ JavaThread* JavaThread::active() {
   }
 }
 
-bool JavaThread::is_lock_owned(address adr) const {
-  assert(LockingMode != LM_LIGHTWEIGHT, "should not be called with new lightweight locking");
-  return Thread::is_lock_owned(adr);
-}
-
 oop JavaThread::exception_oop() const {
   return Atomic::load(&_exception_oop);
 }

src/hotspot/share/runtime/javaThread.hpp

@@ -672,9 +672,6 @@ class JavaThread: public Thread {
     return (_suspend_flags & (_obj_deopt JFR_ONLY(| _trace_flag))) != 0;
   }
 
-  // Fast-locking support
-  bool is_lock_owned(address adr) const;
-
   // Accessors for vframe array top
   // The linked list of vframe arrays are sorted on sp. This means when we
   // unpack the head must contain the vframe array to unpack.

src/hotspot/share/runtime/thread.cpp

@@ -527,11 +527,6 @@ void Thread::print_owned_locks_on(outputStream* st) const {
 }
 #endif // ASSERT
 
-// We had to move these methods here, because vm threads get into ObjectSynchronizer::enter
-// However, there is a note in JavaThread::is_lock_owned() about the VM threads not being
-// used for compilation in the future. If that change is made, the need for these methods
-// should be revisited, and they should be removed if possible.
-
 bool Thread::is_lock_owned(address adr) const {
   assert(LockingMode != LM_LIGHTWEIGHT, "should not be called with new lightweight locking");
   return is_in_full_stack(adr);