@Override
	public void removeNode(GTreeNode node) {
		if (!isLoaded()) {
			return;
		}
		super.removeNode(node);
	}
Sets this lazy node back to the "unloaded" state such that if
its children are accessed, it will reload its children as needed.
Ghidra/Framework/Docking/src/main/java/docking/widgets/tree/GTreeLazyNode.java