ファイルから電子すかしを削除します。
curl -i -X DELETE "https://api.box.com/2.0/files/12345/watermark" \
-H "authorization: Bearer <ACCESS_TOKEN>"
await client.fileWatermarks.deleteFileWatermark(file.id);
client.file_watermarks.delete_file_watermark(file.id)
await client.FileWatermarks.DeleteFileWatermarkAsync(fileId: file.Id);
BoxFile file = new BoxFile(api, id);
file.removeWatermark();
client.file(file_id='12345').delete_watermark()
print('The file watermark was deleted!')
await client.FilesManager.RemoveWatermarkAsync("11111");
client.files.removeWatermark('11111')
.then(() => {
// removal succeeded — no value returned
});