Using the :latest localstack, attempts to delete an SQS queue fail with the following error logged to the console.

```localstack_1                          | 2020-02-11T19:04:08:ERROR:localstack.services.generic_proxy: Error forwarding request: 'Attribute.1.Value' Traceback (most recent call last):
localstack_1                          |   File "/opt/code/localstack/localstack/services/generic_proxy.py", line 248, in forward
localstack_1                          |     path=path, data=data, headers=forward_headers)
localstack_1                          |   File "/opt/code/localstack/.venv/lib/python3.7/site-packages/localstack_ext/services/sqs/sqs_extended.py", line 30, in forward_request
localstack_1                          |   File "/opt/code/localstack/localstack/services/sqs/sqs_listener.py", line 60, in forward_request
localstack_1                          |     self._set_queue_attributes(queue_url, req_data)
localstack_1                          |   File "/opt/code/localstack/.venv/lib/python3.7/site-packages/localstack_ext/services/sqs/sqs_extended.py", line 73, in _set_queue_attributes
localstack_1                          |   File "/opt/code/localstack/localstack/services/sqs/sqs_listener.py", line 275, in _set_queue_attributes
localstack_1                          |     attrs = self._format_attributes(req_data)
localstack_1                          |   File "/opt/code/localstack/localstack/services/sqs/sqs_listener.py", line 237, in _format_attributes
localstack_1                          |     key_value = req_data[key2][0]
localstack_1                          | KeyError: 'Attribute.1.Value'```

I'm using terraform to manage my SQS queues and the deletion was triggered by renaming the queue.
container_name, web_ui_flags, port_mappings, data_dir_mount,
            config.TMP_FOLDER, config.DOCKER_SOCK, config.DOCKER_SOCK, config.DOCKER_SOCK,
            config.HOST_TMP_FOLDER, image_name, cmd
    )
    mkdir(config.TMP_FOLDER)
    try:
        run('chmod -R 777 "%s"' % config.TMP_FOLDER)
    except Exception:
        pass
    class ShellRunnerThread(threading.Thread):
        def __init__(self, cmd):
            threading.Thread.__init__(self)
            self.daemon = True
            self.cmd = cmd
        def run(self):
            self.process = run(self.cmd, asynchronous=True)
    print(docker_cmd)
    t = ShellRunnerThread(docker_cmd)
    t.start()
    time.sleep(2)
    if DO_CHMOD_DOCKER_SOCK:
        
        for i in range(0, 100):
            if docker_container_running(container_name):
                break
            time.sleep(2)
        run('%s exec -u root "%s" chmod 777 /var/run/docker.sock' % (config.DOCKER_CMD, container_name))
    t.process.wait()
    sys.exit(t.process.returncode)
def to_str(obj, errors='strict'):