Drop invalid assertion for recurring callbacks.

Author: fniephaus

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/thread/VMOperationControl.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2023, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -485,7 +485,6 @@ boolean isEmpty() {
 
         void waitForWorkAndExecute() {
             assert isDedicatedVMOperationThread();
-            assert !ThreadingSupportImpl.isRecurringCallbackRegistered(CurrentIsolate.getCurrentThread());
             assert mutex != null;
             mutex.guaranteeIsOwner("Must already be locked.");