private void fireEditingCancelled() {
		updateManager.stop();
		hideMatchingWindow();
		storeSelectedValue(null);
		ChangeEvent event = new ChangeEvent(this);
		for (CellEditorListener listener : cellEditorListeners) {
			listener.editingCanceled(event);
		}
	}
Removes the given listener from this class if it has previously been added.
@param listener The listener to remove.
Ghidra/Framework/Docking/src/main/java/docking/widgets/DropDownTextField.java