Remove alibaba rocketmq gitter channel
Remove alibaba rocketmq gitter channel

diwayou/apache-rocketmq-all,vesense/incubator-rocketmq,dongeforever/incubator-rocketmq,vsair/incubator-rocketmq,penghuazhou/incubator-rocketmq,vsair/incubator-rocketmq,diwayou/apache-rocketmq-all,Vansee/RocketMQ,lindzh/incubator-rocketmq,shroman/incubator-rocketmq,vesense/incubator-rocketmq,Todd-start/RocketMQ,shroman/incubator-rocketmq,lindzh/incubator-rocketmq,vsair/incubator-rocketmq,shroman/incubator-rocketmq,dongeforever/incubator-rocketmq,lindzh/incubator-rocketmq,penghuazhou/incubator-rocketmq,Coneboy-k/incubator-rocketmq,vesense/incubator-rocketmq,Todd-start/RocketMQ,Coneboy-k/incubator-rocketmq,DR-YangLong/RocketMQ,DR-YangLong/RocketMQ,wildwind/incubator-rocketmq,wildwind/incubator-rocketmq,penghuazhou/incubator-rocketmq