diff --git a/docs/index.js b/docs/index.js
index 8cc303ed6..cdbb3a4cb 100644
--- a/docs/index.js
+++ b/docs/index.js
@@ -46,14 +46,6 @@ router.beforeEach((route, redirect, next) => {
   next();
 });
 
-router.afterEach((route) => {
-  if (route.path !== '/') {
-    // const sideNavBox = document.querySelector('.side-nav');
-    // const pageContentBox = document.querySelector('.page-content');
-    // pageContentBox.style.height = Math.max(sideNavBox && sideNavBox.clientHeight, pageContentBox && pageContentBox.clientHeight) + 'px';
-  }
-});
-
 new Vue({ // eslint-disable-line
   render: h => h(App),
   router