Remove use and implments ContainerFactoryPluginInterface

Problem/Motivation

In src/Plugin/Condition/MobileDetectCondition.php file i am seeing class implementing ContainerFactoryPluginInterface but no service injection are added.If no service injection,then why using ContainerFactoryPluginInterface in the class

public function __construct(array $configuration, $plugin_id, array $plugin_definition) {
parent::__construct($configuration, $plugin_id, $plugin_definition);
}

/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
return new static(
$configuration,
$plugin_id,
$plugin_definition
);
}

Proposed resolution

Remove use and implments ContainerFactoryPluginInterface