There's a merged pull request on the void-packages repository

python3-txacme: remove package
https://github.com/void-linux/void-packages/pull/34014

Description:
Removing `python3-txacme` as [ACMEv1 is no longer supported by Let's Encrypt as of June 2021](https://community.letsencrypt.org/t/end-of-life-plan-for-acmev1/88430) and `txacme` has not yet [added ACMEv2 support](https://github.com/twisted/txacme/pull/158). `synapse` removed this module as well [for the same reasons](https://github.com/matrix-org/synapse/issues/9778).