deleted unused imports

Author: rmfay1

src/tests/overview.test.tsx

@@ -1,7 +1,7 @@
 import React from 'react';
 import { Router } from 'react-router-dom';
 import { createMemoryHistory } from 'history';
-import { render, fireEvent, waitFor, screen } from './test-utils';
+import { render, screen } from './test-utils';
 import '@testing-library/jest-dom/extend-expect';
 
 import SingleStudentOverview from '../Components/SingleStudentOverview/SingleStudentOverview';