fix unused import in LoginPage

Author: slax57

packages/ra-supabase-ui-materialui/src/LoginPage.tsx

@@ -1,7 +1,6 @@
 import * as React from 'react';
 import { ReactNode } from 'react';
 
-import { useRedirectIfAuthenticated } from 'ra-supabase-core';
 import { AuthLayout } from './AuthLayout';
 import { LoginForm } from './LoginForm';
 import { Provider } from '@supabase/supabase-js';