Changed default scope

Author: Ignacio

lib/providers/google.js

@@ -22,7 +22,7 @@ import {
   toQueryString,
 } from '../utils/uri';
 
-const SCOPE = 'email profile offline';
+const SCOPE = 'email profile';
 const AUTH = 'https://accounts.google.com/o/oauth2/v2/auth';
 const TOKEN = 'https://www.googleapis.com/oauth2/v4/token';
 const ME = 'https://www.googleapis.com/oauth2/v2/userinfo';