Regs3k asynchronous tests aren't testing anything

[anselmbradford]

These two tests don't actually test anything and should be refactored to handle the async call to fetch

consumerfinance.gov/test/unit_tests/apps/regulations3k/js/recent-notices-spec.js

Lines 81 to 103 in b252497

	it('should load recent notices', () => {
	// Fire `load` event
	simulateEvent('load', window, { currentTarget: window });
	// Wait for window.load to trigger.
	setTimeout(() => {
	const numNotices = document.querySelectorAll('.m-list_link').length;
	expect(numNotices).toEqual(4);
	}, 1000);
	});
	it('should fail to load recent notices', (done) => {
	fetch.mockReject(new Error('Server error!'));
	// Fire `load` event
	simulateEvent('load', window, { currentTarget: window });
	setTimeout(() => {
	// eslint-disable-next-line no-console
	expect(console.error).toBeCalled();
	done();
	}, 100);
	});

The call to fetch happens inside a window.onload event.