diff -r 058bb3dc685f -r 0b59724cb3f2 hooks/zmq.py
--- a/hooks/zmq.py	Mon Jan 04 18:40:30 2016 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,50 +0,0 @@
-# -*- coding: utf-8 -*-
-# copyright 2014 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
-# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
-#
-# This file is part of CubicWeb.
-#
-# CubicWeb is free software: you can redistribute it and/or modify it under the
-# terms of the GNU Lesser General Public License as published by the Free
-# Software Foundation, either version 2.1 of the License, or (at your option)
-# any later version.
-#
-# CubicWeb 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 Lesser General Public License for more
-# details.
-#
-# You should have received a copy of the GNU Lesser General Public License along
-# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
-
-from cubicweb.server import hook
-
-class ZMQStopHook(hook.Hook):
-    __regid__ = 'zmqstop'
-    events = ('server_shutdown',)
-
-    def __call__(self):
-        self.repo.app_instances_bus.stop()
-
-class ZMQStartHook(hook.Hook):
-    __regid__ = 'zmqstart'
-    events = ('server_startup',)
-    order = -1
-
-    def __call__(self):
-        config = self.repo.config
-        address_pub = config.get('zmq-address-pub')
-        address_sub = config.get('zmq-address-sub')
-        if not address_pub and not address_sub:
-            return
-        from cubicweb.server import cwzmq
-        self.repo.app_instances_bus = cwzmq.ZMQComm()
-        if address_pub:
-            self.repo.app_instances_bus.add_publisher(address_pub)
-        def clear_cache_callback(msg):
-            self.debug('clear_caches: %s', ' '.join(msg))
-            self.repo.clear_caches(msg[1:])
-        self.repo.app_instances_bus.add_subscription('delete', clear_cache_callback)
-        for address in address_sub:
-            self.repo.app_instances_bus.add_subscriber(address)
-        self.repo.app_instances_bus.start()