MAGETWO-50415: Grouped product has no products in sample data

Author: RuslanKostiv1

app/code/Magento/GroupedProductSampleData/Model/Product.php

@@ -7,7 +7,7 @@
 
 use Magento\Framework\Setup\SampleData\Context as SampleDataContext;
 use Magento\Catalog\Model\Product\Initialization\Helper\ProductLinks;
-use \Magento\Framework\App\ObjectManager;
+use Magento\Framework\App\ObjectManager;
 
 /**
  * Setup grouped product