fix linting warnings

this commit fix some linting warnings that user get when running npm run lint:js:fix command,
some worning comes after big changes to TypeScript

src/test/Components/edge/EdgeImagesTable.test.js

@@ -1,5 +1,3 @@
-import React from 'react';
-
 import '@testing-library/jest-dom';
 
 import { useFlag } from '@unleash/proxy-client-react';

src/test/Components/edge/ImageDetails.test.js

@@ -1,5 +1,3 @@
-import React from 'react';
-
 import '@testing-library/jest-dom';
 
 import { useFlag } from '@unleash/proxy-client-react';