.arcconfig

sshpeer: extract pipe cleanup logic to own function

So it can be used outside of instantiated classes. This is
needed to support pipe creation before __init__ is called.

Differential Revision: https://phab.mercurial-scm.org/D2029

{
    "conduit_uri": "https://phab.mercurial-scm.org/api",
    "repository.callsign": "HG",
    "arc.land.onto.default": "@",
    "base": "hg:.^"
}