Clean Up Magento/ImportExport/Controller/Adminhtml/History/Download

Author: denispapec

app/code/Magento/ImportExport/Controller/Adminhtml/History/Download.php

@@ -15,6 +15,11 @@ class Download extends \Magento\ImportExport\Controller\Adminhtml\History
      */
     protected $resultRawFactory;
 
+    /**
+     * @var \Magento\Framework\App\Response\Http\FileFactory
+     */
+    private $fileFactory;
+
     /**
      * @param \Magento\Backend\App\Action\Context $context
      * @param \Magento\Framework\App\Response\Http\FileFactory $fileFactory