`QueueIterator` doesn't raise errors when Queue was deleted

[mdczaplicki]

I've encountered a situation in which we've manually deleted a Queue using RabbitMQ dashboard and a running consumer didn't raise any errors.

We:

1. Get channel from connection
2. Declare exchange
3. Declare queue
4. Async iterate queue.iterator()

When we delete the queue manually during point 4 - the consumer sits idle, it doesn't raise any errors.

[mdczaplicki]

It'd duplicated: https://github.com/mosquito/aio-pika/issues/379