remove a comment that was left be mistake

packages/web3-utils/test/integration/event_emitter.test.ts

@@ -15,11 +15,6 @@ You should have received a copy of the GNU Lesser General Public License
 along with web3.js.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-// this file contains the unit test for the event emitter in the DOM environment
-// it is executed in the jsdom environment (see "@jest-environment jsdom" in the top comment of this file)
-
-// ignore the following rule to allow keeping `@jest-environment jsdom` on top:
-// eslint-disable-next-line header/header
 import { EventEmitter } from '../../src/event_emitter';
 
 describe('EventEmitter in the browser with Cypress', () => {