[bug#54304] [PATCH] Don't fix git executable location during Elixir build

[Maxime Devos <maximedevos@telenet.be>]

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Cees de Groot schreef op di 08-03-2022 om 20:52 [+0000]:
> * At run-time, Git is used by Mix if, and only if, there are any Git-based dependencies. This
>   is not the normal case, and in that sense Git is an optional dependency of Elixir - most
>   projects will work just fine without Git being present. Here, too, PATH + `git` is used
>   so if there is a need on a user's system to use Git-based dependencies, the user can just
>   add the package to the profile and things will just work.

If it's optional and not used most of the time, removing
it seems fine to me, though this seems useful information for the
description.  Also, it would be nice if 'elixir' were patched
to emit a nice message when 'git' is not found.  Suggestion:

  This project required 'git', but it is not in $PATH.  It can be
  installed into the user profile with `guix install git`.

You might want to contact whoever added the substitution originally,
to see what the original reasons were.

Greetings,
Maxime.

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