chore(donate): remove donate page tests

Removed the donate page tests, which seemed weirdly depending on
the rendered tree. Unreliable at the best.

We sould be adding comprehensive tests to the components instead.

client/src/pages/donate.test.js

@@ -1,43 +0,0 @@
-/* global jest, expect */
-import React from 'react';
-import 'jest-dom/extend-expect';
-import ShallowRenderer from 'react-test-renderer/shallow';
-import { apiLocation } from '../../config/env.json';
-
-import { DonatePage } from './donate';
-
-describe('<DonatePage />', () => {
-  it('renders to the DOM when user is logged in', () => {
-    const shallow = new ShallowRenderer();
-    shallow.render(<DonatePage {...loggedInProps} />);
-    expect(navigate).toHaveBeenCalledTimes(0);
-    const result = shallow.getRenderOutput();
-    expect(result.type.toString()).toBe('Symbol(react.fragment)');
-    // Renders Helmet component rather than Loader
-    expect(result.props.children[0].props.title).toEqual(
-      'Support our nonprofit | freeCodeCamp.org'
-    );
-  });
-
-  it('redirects to sign in page when user is not logged in', () => {
-    const shallow = new ShallowRenderer();
-    shallow.render(<DonatePage {...loggedOutProps} />);
-    expect(navigate).toHaveBeenCalledTimes(1);
-    expect(navigate).toHaveBeenCalledWith(
-      `${apiLocation}/signin?returnTo=donate`
-    );
-    const result = shallow.getRenderOutput();
-    // Renders Loader rather than DonatePage
-    expect(result.type.displayName).toBe('Loader');
-  });
-});
-
-const navigate = jest.fn();
-const loggedInProps = {
-  createFlashMessage: () => {},
-  isSignedIn: true,
-  showLoading: false,
-  navigate: navigate
-};
-const loggedOutProps = { ...loggedInProps };
-loggedOutProps.isSignedIn = false;