Remove unused use statement after refactor

Signed-off-by: snipe <snipe@snipe.net>

app/Exceptions/Handler.php

@@ -4,7 +4,6 @@ namespace App\Exceptions;
 
 use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;
 use App\Helpers\Helper;
-use Illuminate\Support\Facades\RateLimiter;
 use Illuminate\Validation\ValidationException;
 use Illuminate\Auth\AuthenticationException;
 use ArieTimmerman\Laravel\SCIMServer\Exceptions\SCIMException;