code: public BoxRequestsBookmark.DeleteBookmark getDeleteRequest(String id) {
          BoxRequestsBookmark.DeleteBookmark request = new BoxRequestsBookmark.DeleteBookmark(id, getBookmarkInfoUrl(id), mSession);
          return request;
      }
docs: Gets a request that deletes a bookmark
  
  @param id        id of bookmark to delete
  @return      request to delete a bookmark