docs: simplify website top navigation

Author: rockyshi1993

website/rspress.config.ts

@@ -43,11 +43,6 @@ type NavMenuSource = {
 type NavSource = NavLinkSource | NavMenuSource;
 
 const navSource: NavSource[] = [
-  {
-    en: 'Quick Start',
-    zh: '快速开始',
-    link: '/getting-started'
-  },
   {
     en: 'Common Scenarios',
     zh: '常用场景',