Remove unused import on fmt
Remove unused import on fmt

rabbitmq/rabbitmq-tutorials,rabbitmq/rabbitmq-tutorials,rabbitmq/rabbitmq-tutorials,rabbitmq/rabbitmq-tutorials,rabbitmq/rabbitmq-tutorials,rabbitmq/rabbitmq-tutorials,rabbitmq/rabbitmq-tutorials,rabbitmq/rabbitmq-tutorials,rabbitmq/rabbitmq-tutorials,rabbitmq/rabbitmq-tutorials,rabbitmq/rabbitmq-tutorials,rabbitmq/rabbitmq-tutorials,rabbitmq/rabbitmq-tutorials