refactor(config): remove unused middleware imports

Removed unused imports from config file:
- AllowIps middleware (removed with middleware config)
- ThrottlePrometheus middleware (never used in config)

All tests passing.

Author: sylvesterdamgaard

config/queue-metrics.php

@@ -10,8 +10,6 @@
 use PHPeek\LaravelQueueMetrics\Actions\RecordThroughputHistoryAction;
 use PHPeek\LaravelQueueMetrics\Actions\RecordWorkerHeartbeatAction;
 use PHPeek\LaravelQueueMetrics\Actions\TransitionWorkerStateAction;
-use PHPeek\LaravelQueueMetrics\Http\Middleware\AllowIps;
-use PHPeek\LaravelQueueMetrics\Http\Middleware\ThrottlePrometheus;
 use PHPeek\LaravelQueueMetrics\Repositories\Contracts\BaselineRepository;
 use PHPeek\LaravelQueueMetrics\Repositories\Contracts\JobMetricsRepository;
 use PHPeek\LaravelQueueMetrics\Repositories\Contracts\QueueMetricsRepository;