message: API: Remove unused DownloadController imports
diff: @@ -5,7 +5,7 @@ import {
  Body, Post, Get, Delete, CurrentUser, Authorized
  } from 'routing-controllers';
  import passportJwtMiddleware from '../security/passportJwtMiddleware';
  -import {Unit, FreeTextUnit, CodeKataUnit, TaskUnit} from '../models/units/Unit';
  +import {Unit} from '../models/units/Unit';
  import {IDownload} from '../../../shared/models/IDownload';
  import {IFileUnit} from '../../../shared/models/units/IFileUnit';
  import {Lecture} from '../models/Lecture';
  