版本对应关系https://www.rabbitmq.com/docs/which-erlang

yum list | grep rabbitmq

# 卸载    yum -y remove rabbitmq*  &&  yum -y remove erlang-*

yum -y remove rabbitmq*
yum -y remove rabbitmq-server.noarch

# 删除目录
rm -rf /var/lib/rabbitmq
rm -rf /usr/lib/rabbitmq

-----------------------------------------

yum list | grep erlang
yum -y remove erlang-*