MOBILE-4912 user: Remove non-fired USER_DELEGATE_UPDATE_HANDLER_EVENT

This event was not fired since ionic3 on add contact and block contact
buttons.

Author: crazyserver

src/core/features/user/services/user-delegate.ts

@@ -30,19 +30,6 @@ export enum CoreUserProfileHandlerType {
     BUTTON = 'button', // User profile handler type to be shown as a button.
 }
 
-declare module '@singletons/events' {
-
-    /**
-     * Augment CoreEventsData interface with events specific to this service.
-     *
-     * @see https://www.typescriptlang.org/docs/handbook/declaration-merging.html#module-augmentation
-     */
-    export interface CoreEventsData {
-        [USER_DELEGATE_UPDATE_HANDLER_EVENT]: CoreUserUpdateHandlerData;
-    }
-
-}
-
 /**
  * Interface that all user profile handlers must implement.
  */
@@ -188,11 +175,6 @@ export interface CoreUserProfileHandlerToDisplay {
     type: string;
 }
 
-/**
- * Delegate update handler event.
- */
-export const USER_DELEGATE_UPDATE_HANDLER_EVENT = 'CoreUserDelegate_update_handler_event';
-
 /**
  * Service to interact with plugins to be shown in user profile. Provides functions to register a plugin
  * and notify an update in the data.
@@ -232,21 +214,6 @@ export class CoreUserDelegateService extends CoreDelegate<CoreUserProfileHandler
     constructor() {
         super();
 
-        CoreEvents.on(USER_DELEGATE_UPDATE_HANDLER_EVENT, (data) => {
-            const handlersData = this.getHandlersData(data.userId, data.context, data.contextId);
-
-            // Search the handler.
-            const handler = handlersData.handlers.find((userHandler) => userHandler.name == data.handler);
-
-            if (!handler) {
-                return;
-            }
-
-            // Update the data and notify.
-            Object.assign(handler.data, data.data);
-            handlersData.observable.next(handlersData.handlers);
-        });
-
         CoreEvents.on(CoreEvents.LOGOUT, () => {
             this.clearHandlerCache();
         });
@@ -537,14 +504,3 @@ export enum CoreUserDelegateContext {
     COURSE = 'course',
     USER_MENU = 'user_menu',
 }
-
-/**
- * Data passed to UPDATE_HANDLER_EVENT event.
- */
-export type CoreUserUpdateHandlerData = {
-    handler: string; // Name of the handler.
-    userId: number; // User affected.
-    context: CoreUserDelegateContext; // Context affected.
-    contextId?: number; // ID related to the context.
-    data: Record<string, unknown>; // Data to set to the handler.
-};