remove unneeded axios mock

Author: stevegalili

examples/cookbook/app/network-requests/__tests__/PhoneBook.test.tsx

@@ -4,9 +4,6 @@ import axios from 'axios';
 import PhoneBook from '../PhoneBook';
 import { User } from '../types';
 
-jest.mock('axios');
-
-jest.setTimeout(10000);
 describe('PhoneBook', () => {
   it('fetches contacts successfully and renders in list', async () => {
     (global.fetch as jest.Mock).mockResolvedValueOnce({