driver-core/src/main/com/mongodb/internal/connection/ConcurrentLinkedDeque.java
boolean delete() {
            Node<E> b = getPrev();
            Node<E> f = getNext();
            if (b != null && f != null && !f.isMarker() &&
                casNext(f, new Node<E>(f))) {
                if (b.casNext(this, f))
                    f.setPrev(b);
                return true;
            }
            return false;
        }
boolean delete() {
            Node<E> b = getPrev();
            Node<E> f = getNext();
            if (b != null && f != null && !f.isMarker() &&
                casNext(f, new Node<E>(f))) {
                if (b.casNext(this, f))
                    f.setPrev(b);
                return true;
            }
            return false;
        }
Tries to mark this node as deleted, failing if already
deleted or if this node is header or trailer.

@return true if successful