refactor!: Remove ZendeskFab component

Deletes the ZendeskFab component and associated mock, removes react-zendesk package, and removes env variables for Zendesk

Author: paulbert

.env

@@ -32,7 +32,6 @@ ENTERPRISE_MARKETING_UTM_SOURCE=''
 ENTERPRISE_MARKETING_UTM_CAMPAIGN=''
 ENTERPRISE_MARKETING_FOOTER_UTM_MEDIUM=''
 LEARNING_BASE_URL=''
-ZENDESK_KEY=''
 HOTJAR_APP_ID=''
 HOTJAR_VERSION='6'
 HOTJAR_DEBUG=''

.env.development

@@ -38,7 +38,6 @@ ENTERPRISE_MARKETING_UTM_CAMPAIGN='example.com Referral'
 ENTERPRISE_MARKETING_FOOTER_UTM_MEDIUM='Footer'
 LEARNING_BASE_URL='http://localhost:2000'
 SESSION_COOKIE_DOMAIN='localhost'
-ZENDESK_KEY=''
 HOTJAR_APP_ID=''
 HOTJAR_VERSION='6'
 HOTJAR_DEBUG=''

.env.test

@@ -37,7 +37,6 @@ ENTERPRISE_MARKETING_UTM_SOURCE='example.com'
 ENTERPRISE_MARKETING_UTM_CAMPAIGN='example.com Referral'
 ENTERPRISE_MARKETING_FOOTER_UTM_MEDIUM='Footer'
 LEARNING_BASE_URL='http://localhost:2000'
-ZENDESK_KEY='test-zendesk-key'
 HOTJAR_APP_ID='hot-jar-app-id'
 HOTJAR_VERSION='6'
 HOTJAR_DEBUG=''

example.env.config.js

@@ -59,7 +59,6 @@ module.exports = {
   ENTERPRISE_MARKETING_FOOTER_UTM_MEDIUM: 'Footer',
   LEARNING_BASE_URL: 'http://localhost:2000',
   SESSION_COOKIE_DOMAIN: 'localhost',
-  ZENDESK_KEY: '',
   HOTJAR_APP_ID: '',
   HOTJAR_VERSION: 6,
   HOTJAR_DEBUG: '',

package-lock.json

@@ -61,7 +61,6 @@
     "react-redux": "^7.2.4",
     "react-router-dom": "6.27.0",
     "react-share": "^4.4.0",
-    "react-zendesk": "^0.1.13",
     "redux": "4.2.1",
     "redux-logger": "3.0.6",
     "redux-thunk": "2.4.2",

package.json

@@ -17,7 +17,6 @@ jest.mock('@edx/frontend-component-footer', () => ({ FooterSlot: 'Footer' }));
 
 jest.mock('containers/Dashboard', () => 'Dashboard');
 jest.mock('containers/LearnerDashboardHeader', () => 'LearnerDashboardHeader');
-jest.mock('components/ZendeskFab', () => 'ZendeskFab');
 jest.mock('containers/WidgetContainers/AppWrapper', () => 'AppWrapper');
 jest.mock('data/redux', () => ({
   selectors: 'redux.selectors',