code: public BoxRequestsMetadata.DeleteFileMetadata getDeleteFileMetadataTemplateRequest(String id, String template) {
          BoxRequestsMetadata.DeleteFileMetadata request = new BoxRequestsMetadata.DeleteFileMetadata(getFileMetadataUrl(id, template), mSession);
          return request;
      }
docs: Gets a request that deletes the metadata for a specific template on a file
  
  @param id    id of the file to retrieve metadata for
  @param template    metadata template to use
  @return  request to delete metadata on a file