code: public Response removePhotos(String photosetId, List<String> photoIds) throws JinxException {
      JinxUtils.validateParams(photosetId, photoIds);
      Map<String, String> params = new TreeMap<>();
      params.put("method", "flickr.photosets.removePhotos");
      params.put("photoset_id", photosetId);
      params.put("photo_ids", JinxUtils.buildCommaDelimitedList(photoIds));
      return jinx.flickrPost(params, Response.class);
    }
docs: Remove multiple photos from a photoset.
  <br>
  This method requires authentication with 'write' permission.
  <br>
  Note: This method requires an HTTP POST request.
  
  @param photosetId id of the photoset to remove a photo from.
  @param photoIds   list of photo id's to remove from the photoset.
  @return an empty success response if it completes without error.
  @throws JinxException if any parameter is null or empty, or if there are other errors.
  @see <a href="https://www.flickr.com/services/api/flickr.photosets.removePhotos.html">flickr.photosets.removePhotos</a>