Remove third_party/twisted_8_1

third_party/twisted_8_1/twisted/conch/error.py

-# Copyright (c) 2001-2004 Twisted Matrix Laboratories.
-# See LICENSE for details.
-
-#
-# Paul, why didn't you check in an error.py?
-
-"""
-An error to represent bad things happening in Conch.
-
-Maintainer: U{Paul Swartz<mailto:z3p@twistedmatrix.com>}
-"""
-
-class ConchError(Exception):
-    def __init__(self, value, data = None):
-        Exception.__init__(self, value, data)
-        self.value = value
-        self.data = data
-
-class NotEnoughAuthentication(Exception):
-    """This is thrown if the authentication is valid, but is not enough to
-    successfully verify the user.  i.e. don't retry this type of
-    authentication, try another one.
-    """
-
-class ValidPublicKey(Exception):
-    """This is thrown during the authentication process if the public key
-    is valid for the user.
-    """
-
-class IgnoreAuthentication(Exception):
-    """This is thrown to let the UserAuthServer know it doesn't need to handle
-    the authentication anymore.
-    """