improve the method: QuorumOracleMaj#overrideQuorumDecision

@Override
public boolean overrideQuorumDecision(List<LearnerHandler> forwardingFollowers) {
    if (updateNeedOracle(forwardingFollowers) && askOracle()) {
        return true;
    } else {
        return false;
    }
}

return updateNeedOracle(forwardingFollowers) && askOracle();