public static void cancelWaiters(InternalDistributedMember id) {
    // Now that AdminRequests use a ReplyProcessor, we don't need to
    // do anything here. The ReplyProcessor takes care of members
    // that depart.
  }
Call with the id of a RemoteGfManager that no longer exists. All outstanding requests to that
manager will be cancelled.
geode-core/src/main/java/org/apache/geode/internal/admin/remote/AdminWaiters.java