[bugfix] remove unnecessary props (#323)

* fix: Tabbar icon line-height

* [new feature] progress add showPivot prop

* [new feature] TabItem support vue-router

* [new feature] update document header style

* [Doc] add toast english ducoment

* [bugfix] Search box-sizing wrong

* [Doc] update vant-demo respo

* [Doc] translate theme & demo pages

* [Doc] add Internationalization document

* [bugfix] remove unnecessary props

packages/toast/index.js

@@ -6,9 +6,9 @@ let instance;
 const defaultOptions = {
   visible: true,
   type: 'text',
+  mask: false,
   position: 'middle',
   duration: 3000,
-  mask: false,
   forbidClick: false,
   clear: () => {
     instance.visible = false;