code: public BoxRequestsBookmark.DeleteBookmarkFromCollection getDeleteFromCollectionRequest(String id) {
          BoxRequestsBookmark.DeleteBookmarkFromCollection request = new BoxRequestsBookmark.DeleteBookmarkFromCollection(id, getBookmarkInfoUrl(id), mSession);
          return request;
      }
docs: Gets a request that removes a bookmark from a collection
  
  @param id        id of bookmark to delete from the collection
  @return request to delete a bookmark from a collection