Remove unused dependency

Author: puntope

tests/Unit/API/WP/OAuthServiceTest.php

@@ -3,7 +3,6 @@
 
 namespace Automattic\WooCommerce\GoogleListingsAndAds\Tests\Unit\API\WP;
 
-use Automattic\WooCommerce\GoogleListingsAndAds\API\Google\Ads;
 use Automattic\WooCommerce\GoogleListingsAndAds\API\Google\Middleware;
 use Automattic\WooCommerce\GoogleListingsAndAds\API\WP\OAuthService;
 use Automattic\WooCommerce\GoogleListingsAndAds\HelperTraits\Utilities as UtilitiesTrait;