Remove RevealController initial class

- This is not used and was added as part of #10793
- Avoid this controller managing this behaviour and instead if needed we can use w-init

client/src/controllers/RevealController.test.js

@@ -143,13 +143,12 @@ describe('RevealController', () => {
     it('should update classes when opened/closed', async () => {
       await setup(`
       <section
-        class="container remove-me-when-connected"
+        class="container"
         id="section"
         data-controller="w-reveal"
         data-w-reveal-close-icon-class="icon-collapse"
         data-w-reveal-closed-class="collapsed"
         data-w-reveal-closed-value="true"
-        data-w-reveal-initial-class="remove-me-when-connected"
         data-w-reveal-open-icon-class="icon-expand"
         data-w-reveal-opened-class="open--container"
         data-w-reveal-opened-content-class="show-max-width"
@@ -170,10 +169,6 @@ describe('RevealController', () => {
       const icon = document.querySelector('.icon');
       const useElement = icon.querySelector('use');
 
-      // initially closed
-      expect(document.getElementById('section').className).toEqual(
-        'container collapsed', // should not have 'remove-me-when-connected'
-      );
       expect(
         [...document.querySelectorAll('li')].every(
           (li) => li.className === 'item',

client/src/controllers/RevealController.ts

@@ -17,7 +17,6 @@ export class RevealController extends Controller<HTMLElement> {
   static classes = [
     'closed',
     'closeIcon',
-    'initial',
     'opened',
     'openedContent',
     'openIcon',
@@ -76,18 +75,14 @@ export class RevealController extends Controller<HTMLElement> {
 
     new Promise((resolve) => {
       setTimeout(resolve);
-    })
-      .then(() => {
-        this.element.classList.remove(...this.initialClasses);
-      })
-      .then(() => {
-        this.dispatch('ready', {
-          cancelable: false,
-          detail: {
-            closed: this.closedValue,
-          },
-        });
+    }).then(() => {
+      this.dispatch('ready', {
+        cancelable: false,
+        detail: {
+          closed: this.closedValue,
+        },
       });
+    });
   }
 
   closedValueChanged(shouldClose: boolean, previouslyClosed?: boolean) {