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

gx-go: remove package.
https://github.com/void-linux/void-packages/pull/28871

Description:
Package has been broken for some time, and hasn't seen nearly any action
after the latest release.

@lemmi they seem to have moved to Go modules, but I didn't try to do anything with that. Feel free to close this if you prefer to update it / patch it.

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#### General
- [ ] This is a new package and it conforms to the [quality requirements](https://github.com/void-linux/void-packages/blob/master/Manual.md#quality-requirements)

#### Have the results of the proposed changes been tested?
- [ ] I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me
- [ ] I generally don't use the affected packages but briefly tested this PR

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