refs #16821 [fid] speed up csv export by limit fidis user request to one

* response contains complete user list inclusive all relevant details
* see also #16938

module/fid/src/Controller/UserController.php

@@ -776,9 +776,6 @@ class UserController extends AbstractBase
         );
         $output = implode("\t",$fields)."\n";
         foreach ($userList as $user) {
-            // we need to load the actual user object since some
-            // properties are missing from the overview list
-            $user = $this->client->requestUserDetails($user->id);
             $output .= $user->export($fields)."\n";
         }
         $response->setContent($output);