fix: Remove Studio Maintenance link (#553)

This Studio Maintenance app has been broken for a long time,
so it is being removed from edx-platform:
https://github.com/openedx/edx-platform/pull/35852

src/Header.messages.jsx

@@ -61,11 +61,6 @@ const messages = defineMessages({
     defaultMessage: 'Studio Home',
     description: 'Link to the Studio Home',
   },
-  'header.user.menu.studio.maintenance': {
-    id: 'header.user.menu.studio.maintenance',
-    defaultMessage: 'Maintenance',
-    description: 'Link to the Studio Maintenance',
-  },
   'header.label.account.nav': {
     id: 'header.label.account.nav',
     defaultMessage: 'Account',

src/studio-header/StudioHeader.test.jsx

@@ -12,7 +12,6 @@ import { Context as ResponsiveContext } from 'react-responsive';
 import { MemoryRouter } from 'react-router-dom';
 
 import StudioHeader from './StudioHeader';
-import messages from './messages';
 
 const authenticatedUser = {
   userId: 3,
@@ -115,16 +114,6 @@ describe('Header', () => {
       expect(dropdownOption).toBeVisible();
     });
 
-    it('maintenance should not be in user menu', async () => {
-      currentUser = { ...authenticatedUser, administrator: false };
-      const { getAllByRole, queryByText } = render(<RootWrapper {...props} />);
-      const userMenu = getAllByRole('button')[1];
-      await waitFor(() => fireEvent.click(userMenu));
-      const maintenanceButton = queryByText(messages['header.user.menu.maintenance'].defaultMessage);
-
-      expect(maintenanceButton).toBeNull();
-    });
-
     it('user menu should use avatar icon', async () => {
       currentUser = { ...authenticatedUser, avatar: null };
       const { getByTestId } = render(<RootWrapper {...props} />);
@@ -186,15 +175,6 @@ describe('Header', () => {
       expect(desktopMenu).toBeNull();
     });
 
-    it('maintenance should be in user menu', async () => {
-      const { getAllByRole, getByText } = render(<RootWrapper {...props} />);
-      const userMenu = getAllByRole('button')[1];
-      await waitFor(() => fireEvent.click(userMenu));
-      const maintenanceButton = getByText(messages['header.user.menu.maintenance'].defaultMessage);
-
-      expect(maintenanceButton).toBeVisible();
-    });
-
     it('user menu should use avatar image', async () => {
       const { getByTestId } = render(<RootWrapper {...props} />);
       const avatarImage = getByTestId('avatar-image');

src/studio-header/messages.js

@@ -6,11 +6,6 @@ const messages = defineMessages({
     defaultMessage: 'Studio Home',
     description: 'Link to Studio Home',
   },
-  'header.user.menu.maintenance': {
-    id: 'header.user.menu.maintenance',
-    defaultMessage: 'Maintenance',
-    description: 'Link to the Studio maintenance page',
-  },
   'header.user.menu.logout': {
     id: 'header.user.menu.logout',
     defaultMessage: 'Logout',

src/studio-header/utils.js

@@ -1,4 +1,3 @@
-import { getConfig } from '@edx/frontend-platform';
 import messages from './messages';
 
 const getUserMenuItems = ({
@@ -21,9 +20,6 @@ const getUserMenuItems = ({
       {
         href: `${studioBaseUrl}`,
         title: intl.formatMessage(messages['header.user.menu.studio']),
-      }, {
-        href: `${getConfig().STUDIO_BASE_URL}/maintenance`,
-        title: intl.formatMessage(messages['header.user.menu.maintenance']),
       }, {
         href: `${logoutUrl}`,
         title: intl.formatMessage(messages['header.user.menu.logout']),