MAGETWO-95773: Credit memo is created instead of returning error via invoice refund API for Bundle product

- remove empty line

Author: krissyhiserote

app/code/Magento/Sales/Test/Unit/Model/Order/ItemRepositoryTest.php

@@ -176,7 +176,6 @@ public function testGet()
             ->method('getNewInstance')
             ->willReturn($orderItemMock);
 
-
         $model = $this->getModel($orderItemMock, $productType);
         $this->assertSame($orderItemMock, $model->get($orderItemId));