removed eslint directives

Author: Biki-das

packages/use-sync-external-store/src/__tests__/useSyncExternalStoreWithSelector-test.js

@@ -29,9 +29,7 @@ describe('useSyncExternalStoreWithSelector', () => {
       // of React 17.
       jest.mock('react', () => {
         const {
-          // eslint-disable-next-line no-unused-vars
           startTransition: _,
-          // eslint-disable-next-line no-unused-vars
           useSyncExternalStore: __,
           ...otherExports
         } = jest.requireActual('react');