docs(messaging): remove duplicate title key

mikehardy · mikehardy · commit afe735919a44 · 2023-05-11T07:26:00.000-05:00
Noticed by @imdkbj Supercedes #7052
diff --git a/packages/messaging/lib/index.d.ts b/packages/messaging/lib/index.d.ts
@@ -213,11 +213,6 @@ export namespace FirebaseMessagingTypes {
   type NotificationPayload = Notification;
 
   export interface Notification {
-    /**
-     * The notification title.
-     */
-    title?: string;
-
     /**
      * The native localization key for the notification title.
      */
