New comment by sgn on void-packages repository

https://github.com/void-linux/void-packages/issues/20393#issuecomment-611399337

Comment:
On 2020-04-09 01:13:10-0700, Piraty <notifications@github.com> wrote:
> is the chroot really required to know if there's a git directory? @xtraeme ?

There're 2 information xbps-src needs to get from git:

- `SOURCE_DATE_EPOCH` (`common/environment/setup/git.sh`),
  this can be work-around by calculate it from outside,
  then export into chroot
- `gitrev` metadata for the package
  (`common/hooks/post-install/05-generate-gitrevs.sh`),
  this will be run in `pkg` step,
  we can work-around by calculate it from outside of chroot, export
  into chroot.

After done all this steps, we no longer need git inside chroot,
thus, `chroot-git` packages is no longer required, and, can be removed
from base-chroot.

-- 
Danh