Exclude country based tax calculation

Prevent taxes from being calculated based on the customer's country.

add_filter('advanced_woo_discount_rules_get_price_including_tax', function($price, $product, $original_price){
	$post_data = $_POST['post_data'];
	$post = array();
	if (!empty($post_data)) {
		parse_str($post_data, $post);
	}
	$shipping_country = isset($_POST['calc_shipping_country']) ? $_POST['calc_shipping_country'] : null;
	if (empty($shipping_country) || is_null($shipping_country)) {
		$shipping_country = isset($_POST['s_country']) ? $_POST['s_country'] : null;
		if (empty($shipping_country) || is_null($shipping_country)) {
			if (isset($post['shipping_country']) && !empty($post['shipping_country'])) {
				$shipping_country = $post['shipping_country'];
			} else {
				if(class_exists('\Wdr\App\Helpers\Woocommerce')){
					$shipping_country = Wdr\App\Helpers\Woocommerce::getShippingCountry();
				}
			}
		}
	}
	if(!is_array($shipping_country) && $shipping_country == 'DE'){
		return $original_price;
	}
	return $price;
}, 10, 3);