Using Phpredis in Laravel 5.7

I have read the docs.

I have changed the database.php file, once this is done I have deleted the predis package from my vendor.

composer remove predis/predis

But when I do a composer update or any artisan command I get this error:

In PredisConnector.php line 25:

  Class 'Predis\Client' not found

Why do I need predis if I am already using phpredis?

via Chebli Mohamed