The golang-github-kelvins-sunrisesunset package ships upstream code from
2020 and appears unmaintained.  It has no reverse dependencies in
Debian.

https://tracker.debian.org/pkg/golang-github-kelvins-sunrisesunset

The upstream project was archived in 2023:

https://github.com/kelvins/sunrisesunset

    ⚠️ This project is no longer being maintained ⚠️

    Consider using a forked version of this repository or another
    project like go-sunrise.  https://github.com/nathan-osman/go-sunrise

This removal request is part of a larger batch to remove 100+ unused
golang-*-dev packages from Debian.  I believe the QA cost associated
with keeping all of them is larger than the cost of (hopefully extremely
rare) re-introduction of any accidentally removed package if there is
ever any future need for it.  Meanwhile, I don't think it is useful to
keep this package in Debian.

/Simon

jas@frallan:~$ ssh mirror.ftp-master.debian.org dak rm -Rn golang-github-kelvins-sunrisesunset
Will remove the following packages from unstable:

golang-github-kelvins-sunrisesunset |      1.0-3 | source
golang-github-kelvins-sunrisesunset-dev |      1.0-3 | all

Maintainer: Debian Go Packaging Team <team+pkg-go@tracker.debian.org>
------------------- Reason -------------------

----------------------------------------------

Checking reverse dependencies...
No dependency problem found.

jas@frallan:~$