public void removeClientCq(ClientProxyMembershipID clientId, InternalCqQuery cqToClose) {
    CqNameToOp cqs = getClientCq(clientId);
    if (cqs != null) {
      cqs.delete(cqToClose.getName());
      // remove clientId key if no more cqs exist for this clientId
      if (cqs.isEmpty()) {
        _clientCqs.remove(clientId);
      }
    }
  }
Returns the cqs for the given client.
geode-core/src/main/java/org/apache/geode/internal/cache/tier/sockets/ClientUpdateMessageImpl.java