Do not use UploadFile for GoutteClient

Author: Terje Bråten

src/HttpCall/Request/BrowserKit.php

@@ -62,7 +62,7 @@ public function send($method, $url, $parameters = [], $files = [], $content = nu
         $client = $this->mink->getSession()->getDriver()->getClient();
 
         $tmpFiles = [];
-        if (true || !$client instanceof GoutteClient) {
+        if (!$client instanceof GoutteClient) {
             foreach ($files as &$file) {
                 if (is_string($file)) {
                     $tmpName = tempnam(sys_get_temp_dir(), 'upload');