1 files changed, 0 insertions, 110 deletions

diff --git a/mailman/interfaces/chain.py b/mailman/interfaces/chain.py
deleted file mode 100644
index 2685b7980..000000000
--- a/mailman/interfaces/chain.py
+++ /dev/null
@@ -1,110 +0,0 @@
-# Copyright (C) 2007-2009 by the Free Software Foundation, Inc.
-#
-# This file is part of GNU Mailman.
-#
-# GNU Mailman is free software: you can redistribute it and/or modify it under
-# the terms of the GNU General Public License as published by the Free
-# Software Foundation, either version 3 of the License, or (at your option)
-# any later version.
-#
-# GNU Mailman is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-# more details.
-#
-# You should have received a copy of the GNU General Public License along with
-# GNU Mailman.  If not, see <http://www.gnu.org/licenses/>.
-
-"""Interfaces describing the basics of chains and links."""
-
-from __future__ import absolute_import, unicode_literals
-
-__metaclass__ = type
-__all__ = [
-    'IChain',
-    'IChainIterator',
-    'IChainLink',
-    'IMutableChain',
-    'LinkAction',
-    ]
-
-
-from munepy import Enum
-from zope.interface import Interface, Attribute
-
-
-
-class LinkAction(Enum):
-    # Jump to another chain.
-    jump = 0
-    # Take a detour to another chain, returning to the original chain when
-    # completed (if no other jump occurs).
-    detour = 1
-    # Stop processing all chains.
-    stop = 2
-    # Continue processing the next link in the chain.
-    defer = 3
-    # Run a function and continue processing.
-    run = 4
-
-
-
-class IChainLink(Interface):
-    """A link in the chain."""
-
-    rule = Attribute('The rule to run for this link.')
-
-    action = Attribute('The LinkAction to take if this rule matches.')
-
-    chain = Attribute('The chain to jump or detour to.')
-
-    function = Attribute(
-        """The function to execute.
-
-        The function takes three arguments and returns nothing.
-        :param mlist: the IMailingList object
-        :param msg: the message being processed
-        :param msgdata: the message metadata dictionary
-        """)
-
-
-
-class IChain(Interface):
-    """A chain of rules."""
-
-    name = Attribute('Chain name; must be unique.')
-    description = Attribute('A brief description of the chain.')
-
-    def get_links(mlist, msg, msgdata):
-        """Get an `IChainIterator` for processing.
-
-        :param mlist: the IMailingList object
-        :param msg: the message being processed
-        :param msgdata: the message metadata dictionary
-        :return: An `IChainIterator`.
-        """
-
-
-
-class IChainIterator(Interface):
-    """An iterator over chain rules."""
-
-    def __iter__():
-        """Iterate over all the IChainLinks in this chain.
-
-        :return: an IChainLink.
-        """
-
-
-
-class IMutableChain(IChain):
-    """Like `IChain` but can be mutated."""
-
-    def append_link(link):
-        """Add a new chain link to the end of this chain.
-
-        :param link: The chain link to add.
-        """
-
-    def flush():
-        """Delete all links in this chain."""