message: API: Remove unused Course.ts imports
diff: @@ -14,9 +14,6 @@ import {extractMongoId} from '../utilities/ExtractMongoId';
  import {ChatRoom, IChatRoomModel} from './ChatRoom';
  import {Picture} from './mediaManager/File';
  -import {IPictureModel} from './mediaManager/Picture';
  -import {IPicture} from '../../../shared/models/mediaManager/IPicture';
  -import * as fs from 'fs';
  interface ICourseModel extends ICourse, mongoose.Document {
  exportJSON: (sanitize?: boolean, onlyBasicData?: boolean) => Promise<ICourse>;
  