clean code

packages/app/src/components/InAppNotification/InAppNotificationElm.tsx

@@ -6,10 +6,6 @@ import { HasObjectId } from '~/interfaces/has-object-id';
 import { apiv3Post } from '~/client/util/apiv3-client';
 import FormattedDistanceDate from '../FormattedDistanceDate';
 
-import loggerFactory from '~/utils/logger';
-
-const logger = loggerFactory('growi:InAppNotificationElm');
-
 
 interface Props {
   notification: IInAppNotification & HasObjectId