There is an updated pull request by realcharmer against master on the void-packages repository

https://github.com/realcharmer/void-packages ulozto-downloader
https://github.com/void-linux/void-packages/pull/47752

ulozto-downloader: remove package
This program was developed for a service that has since shut down, rendering this package outdated and inoperable.

A patch file from https://github.com/void-linux/void-packages/pull/47752.patch is attached