Chore: Clean up old navigation (#66287)

* remove code outside of the topnav feature flag

* delete NavBar folder

* remove topnav toggle from backend

* restructure AppChrome folder

* fix utils mock

* fix applinks tests

* remove tests since they're covered in e2e

* fix 1 of the approotpage tests

* Fix another dashboardpage test

* remove reverse portalling + test for plugins using deprecated onNavChanged method

* kick drone

* handle correlations

public/app/features/profile/ChangePasswordPage.test.tsx

@@ -59,7 +59,6 @@ describe('ChangePasswordPage', () => {
 
   it('should show change password form when user has loaded', async () => {
     await getTestContext();
-    expect(screen.getByText('Change Your Password')).toBeInTheDocument();
 
     expect(screen.getByLabelText('Old password')).toBeInTheDocument();
     expect(screen.getByLabelText('New password')).toBeInTheDocument();
@@ -70,6 +69,7 @@ describe('ChangePasswordPage', () => {
     expect(screen.getByRole('link', { name: 'Cancel' })).toBeInTheDocument();
     expect(screen.getByRole('link', { name: 'Cancel' })).toHaveAttribute('href', '/profile');
   });
+
   it('should call changePassword if change password is valid', async () => {
     const { props } = await getTestContext();
 

public/app/features/profile/ChangePasswordPage.tsx

@@ -36,9 +36,6 @@ export function ChangePasswordPage({ loadUser, isUpdating, user, changePassword
       <Page.Contents isLoading={!Boolean(user)}>
         {user ? (
           <>
-            <Page.OldNavOnly>
-              <h3 className="page-sub-heading">Change Your Password</h3>
-            </Page.OldNavOnly>
             <ChangePasswordForm user={user} onChangePassword={changePassword} isSaving={isUpdating} />
           </>
         ) : null}