.arcconfig

debugdiscovery: drop duplicated information

The old line informing about the local being a superset or subset of the remote
is redundant with the newly introduced data. So we drop it.

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