Revert "arcconfig: add callsign again"

[arichardson]

Summary

Now that we are committing via git this incorrectly assigns the
subversion repository to all revision that are uploaded using
arcanist

This reverts commit 1906ce9ca7d8fb9bb130c075e466812c22f8fd47.

[arichardson]

Seems to work: Unlike D27971 this was assigned to the correct repo.

[jhb]

I think I'd still rather fix the callsign. It would be '10' now I think (too bad we can't just rename the 'S' alias in phabricator itself). For example, in this checkout:

> git status
On branch main
Your branch is up to date with 'origin/main'.

> git remote -v
freebsd https://git.freebsd.org/src.git (fetch)
freebsd ssh://[e-mail]/src.git (push)
origin  [e-mail]:bsdjhb/freebsd.git (fetch)
origin  [e-mail]:bsdjhb/freebsd.git (push)

If I remove the callsign, arc which says it can't figure out what to do:

> arc which
REPOSITORY
To identify the repository associated with this working copy, arc followed this process:

    Configuration value "repository.callsign" is empty.

    This repository has no VCS UUID (this is normal for git/hg).

    The remote URI for this working copy is
    "[e-mail]:bsdjhb/freebsd.git".

    No repositories matched the query. Check that your configuration is
    correct, or use "repository.callsign" to select a repository explicitly.

This working copy is not associated with any repository.

I tried using '10' and 'R10' as the callsign and neither of those worked:

> arc which
REPOSITORY
To identify the repository associated with this working copy, arc followed this process:

    Configuration value "repository.callsign" is set to "R10".

    No repositories matched the query. Check that your configuration is
    correct, or use "repository.callsign" to select a repository explicitly.

This working copy is not associated with any repository.

We should figure out what the right fix is, but I think it will always require an explicit callsign as the implicit callsign depends on having a single source of truth, and we don't have that, we have git.freebsd.org, github/freebsd/freebsd-src.git, and a mirror on gitlab already.

[arichardson]

I think arcanist might not like numeric-only callsigns? I can't figure out what the correct value should be.

[lwhsu]

In D27972#667048, @arichardson wrote:

I think arcanist might not like numeric-only callsigns? I can't figure out what the correct value should be.

Might be. I hope we can still using "S" as the callsign in the git repository, and rename the old svn repository. I'm back to work on testing this in phabricator staging env this week. Please wait me for a few days more.

[lwhsu]

In D27972#667122, @lwhsu wrote:

In D27972#667048, @arichardson wrote:

I think arcanist might not like numeric-only callsigns? I can't figure out what the correct value should be.

Might be. I hope we can still using "S" as the callsign in the git repository, and rename the old svn repository. I'm back to work on testing this in phabricator staging env this week. Please wait me for a few days more.

There is no good test result so far. I think it benefits anybody to keep blocking this. Let's remove the repository callsign first and we can add it back if it's needed in the future.