docs: public CmsListDefaultAction removeDefaultAction(String actionId) {
  
          Iterator<CmsListDefaultAction> it = m_defaultActions.iterator();
          while (it.hasNext()) {
              CmsListDefaultAction action = it.next();
              if (action.getId().equals(actionId)) {
                  it.remove();
                  return action;
              }
          }
          return null;
      }