chore: remove iconfont

Author: Mister-Hope

docs/.vuepress/config.ts

@@ -44,7 +44,6 @@ export default defineUserConfig({
           s.parentNode.insertBefore(hm, s);
         })();`,
     ],
-    ["link", { rel: "stylesheet", href: "/iconfont/iconfont.css" }],
     ["link", { rel: "icon", href: "/favicon.ico" }],
   ],