Make sure queue.bind-ok, unbind-ok, delete-ok, purge-ok, basic.consume-ok and basic.cancel-ok all remove callbacks after executing them
Make sure queue.bind-ok, unbind-ok, delete-ok, purge-ok, basic.consume-ok and basic.cancel-ok all remove callbacks after executing them

 * Thanks to Elias Levy for pointing this out

travis-repos/amq-client,ruby-amqp/amq-client,travis-repos/amq-client,ruby-amqp/amq-client