diff --git a/layouts/default.vue b/layouts/default.vue
index 2640f22aa..2ee355ba8 100644
--- a/layouts/default.vue
+++ b/layouts/default.vue
@@ -75,20 +75,6 @@ export default {
             sessionStorage.setItem('primevue-news-hidden', 'true');
             event.stopPropagation();
         },
-        addClass(element, className) {
-            if (!this.hasClass(element, className)) {
-                if (element.classList) element.classList.add(className);
-                else element.className += ' ' + className;
-            }
-        },
-        removeClass(element, className) {
-            if (element.classList) element.classList.remove(className);
-            else element.className = element.className.replace(new RegExp('(^|\\b)' + className.split(' ').join('|') + '(\\b|$)', 'gi'), ' ');
-        },
-        hasClass(element, className) {
-            if (element.classList) return element.classList.contains(className);
-            else return new RegExp('(^| )' + className + '( |$)', 'gi').test(element.className);
-        },
         isOutdatedIE() {
             let ua = window.navigator.userAgent;