public int getCurrentBrokerCount() {
        return this.brokerForbiddenCount.get();
    }
Remove broker info and decrease total broker count and forbidden broker count

@param brokerId the deleted broker id
inlong-tubemq/tubemq-server/src/main/java/org/apache/inlong/tubemq/server/master/nodemanage/nodebroker/BrokerAbnHolder.java