Revert "fix(toast): screen readers now announce toasts when presented (#24937)"

This reverts commit 8a97f6b.

Author: liamdebeasi

core/src/components/toast/readme.md

@@ -59,30 +59,6 @@ interface ToastOptions {
 interface ToastAttributes extends JSXBase.HTMLAttributes<HTMLElement> {}
 ```
 
-## Accessibility
-
-### Focus Management
-
-Toasts are intended to be subtle notifications and are not intended to interrupt the user. User interaction should not be required to dismiss the toast. As a result, focus is not automatically moved to a toast when one is presented.
-
-### Screen Readers
-
-`ion-toast` has `aria-live="polite"` and `aria-atomic="true"` set by default.
-
-`aria-live` causes screen readers to announce the content of the toast when it is presented. However, since the attribute is set to `'polite'`, screen readers generally do not interrupt the current task. Developers can customize this behavior by using the `htmlAttributes` property to set `aria-live` to `'assertive'`. This will cause screen readers to immediately notify the user when a toast is presented, potentially interrupting any previous updates.
-
-`aria-atomic="true"` is set to ensure that the entire toast is announced as a single unit. This is useful when dynamically updating the content of the toast as it prevents screen readers from announcing only the content that has changed. 
-
-### Tips
-
-While this is not a complete list, here are some guidelines to follow when using toasts.
-
-* Do not require user interaction to dismiss toasts. For example, having a "Dismiss" button in the toast is fine, but the toast should also automatically dismiss on its own after a timeout period. If you need user interaction for a notification, consider using [ion-alert](./alert) instead.
-
-* Avoid opening multiple toasts in quick succession. If `aria-live` is set to `'assertive'`, screen readers may interrupt the reading of the current task to announce the new toast, causing the context of the previous toast to be lost.
-
-* For toasts with long messages, consider adjusting the `duration` property to allow users enough time to read the content of the toast.
-
 <!-- Auto Generated Below -->
 
 

core/src/components/toast/test/a11y/index.html

@@ -280,8 +280,6 @@ export class Toast implements ComponentInterface, OverlayInterface {
 
     return (
       <Host
-        aria-live="polite"
-        aria-atomic="true"
         role={role}
         tabindex="-1"
         {...this.htmlAttributes as any}