message: App: Remove 2 unused imports from data.service.ts
diff: @@ -5,13 +5,11 @@ import {ILecture} from '../../../../../../shared/models/ILecture';
  import {IUnit} from '../../../../../../shared/models/units/IUnit';
  import {IUser} from '../../../../../../shared/models/IUser';
  import {ICourse} from '../../../../../../shared/models/ICourse';
  -import {INotificationSettings} from '../../../../../../shared/models/INotificationSettings';
  import {IDownload} from '../../../../../../shared/models/IDownload';
  import {IDirectory} from '../../../../../../shared/models/mediaManager/IDirectory';
  import {IFile} from '../../../../../../shared/models/mediaManager/IFile';
  import {IUserSearchMeta} from '../../../../../../shared/models/IUserSearchMeta';
  import {IConfig} from '../../../../../../shared/models/IConfig';
  -import {literalMap} from '@angular/compiler/src/output/output_ast';
  export abstract class DataService {
  