remove legacy databases

bob/bio/face/config/database/fargo.py

-#!/usr/bin/env python
-
-from bob.bio.base.pipelines import DatabaseConnector
-from bob.bio.face.database import FargoBioDatabase
-from bob.extension import rc
-
-fargo_directory = rc["bob.db.fargo.directory"]
-
-database = DatabaseConnector(
-    FargoBioDatabase(
-        original_directory=fargo_directory,
-        original_extension=".png",
-        protocol="mc-rgb",
-    )
-)