feat: deprecate notification tray in learning header

example/index.js

@@ -4,8 +4,7 @@ import React from 'react';
 import ReactDOM from 'react-dom';
 import { initialize, getConfig, subscribe, APP_READY } from '@edx/frontend-platform';
 import { AppContext, AppProvider } from '@edx/frontend-platform/react';
-// import Header from '@edx/frontend-component-header';
-import { LearningHeader as Header } from '@edx/frontend-component-header';
+import Header from '@edx/frontend-component-header';
 
 import './index.scss';
 

package.json

@@ -62,17 +62,11 @@
     "@fortawesome/free-regular-svg-icons": "6.4.0",
     "@fortawesome/free-solid-svg-icons": "6.4.0",
     "@fortawesome/react-fontawesome": "^0.2.0",
-    "@reduxjs/toolkit": "1.9.5",
     "axios-mock-adapter": "1.21.5",
     "babel-polyfill": "6.26.0",
-    "classnames": "2.3.2",
-    "lodash": "4.17.21",
-    "react-redux": "7.2.9",
     "react-responsive": "8.2.0",
     "react-router-dom": "5.3.4",
-    "react-transition-group": "4.4.5",
-    "rosie": "2.1.0",
-    "timeago.js": "4.0.2"
+    "react-transition-group": "4.4.5"
   },
   "peerDependencies": {
     "@edx/frontend-platform": "^4.0.0",

src/Header.test.jsx

@@ -2,38 +2,24 @@
 import React from 'react';
 import { IntlProvider } from '@edx/frontend-platform/i18n';
 import TestRenderer from 'react-test-renderer';
-import { AppContext, AppProvider } from '@edx/frontend-platform/react';
+import { AppContext } from '@edx/frontend-platform/react';
 import { Context as ResponsiveContext } from 'react-responsive';
-import { initializeMockApp } from '@edx/frontend-platform';
-import store from './store';
 
 import Header from './index';
 
 const HeaderComponent = ({ width, contextValue }) => (
   <ResponsiveContext.Provider value={width}>
     <IntlProvider locale="en" messages={{}}>
-      <AppProvider store={store}>
-        <AppContext.Provider
-          value={contextValue}
-        >
-          <Header />
-        </AppContext.Provider>
-      </AppProvider>
+      <AppContext.Provider
+        value={contextValue}
+      >
+        <Header />
+      </AppContext.Provider>
     </IntlProvider>
   </ResponsiveContext.Provider>
 );
 
 describe('<Header />', () => {
-  beforeEach(async () => {
-    initializeMockApp({
-      authenticatedUser: {
-        userId: '123abc',
-        username: 'testuser',
-        administrator: false,
-        roles: [],
-      },
-    });
-  });
   it('renders correctly for anonymous desktop', () => {
     const contextValue = {
       authenticatedUser: null,