Apply fixes from StyleCI

Author: StyleCIBot

src/QueueProvider.php

@@ -7,7 +7,6 @@
 use PhpAmqpLib\Channel\AMQPChannel;
 use PhpAmqpLib\Connection\AbstractConnection;
 use Yiisoft\Queue\AMQP\Exception\ExchangeDeclaredException;
-use Yiisoft\Queue\AMQP\Settings\Exchange;
 use Yiisoft\Queue\AMQP\Settings\ExchangeSettingsInterface;
 use Yiisoft\Queue\AMQP\Settings\QueueSettingsInterface;