Remove nova.rpc.impl_carrot.

This module was marked as deprecated and scheduled for removal in Essex.
Remove it now that Folsom development is open.  nova.rpc.impl_kombu
should be used instead.

This patch also removes nova.testing.fake.rabbit, since as far as I can
tell, it isn't used anymore and was the last thing still using the
carrot dependency.

Change-Id: I8cfb2d09ee5eed439ec1d152261f7097faf08ad6

nova/tests/rpc/test_carrot.py

@@ -1,41 +0,0 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
-# Copyright 2010 United States Government as represented by the
-# Administrator of the National Aeronautics and Space Administration.
-# All Rights Reserved.
-#
-#    Licensed under the Apache License, Version 2.0 (the "License"); you may
-#    not use this file except in compliance with the License. You may obtain
-#    a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#    License for the specific language governing permissions and limitations
-#    under the License.
-"""
-Unit Tests for remote procedure calls using carrot
-"""
-
-from nova import log as logging
-from nova.rpc import impl_carrot
-from nova.tests.rpc import common
-
-
-LOG = logging.getLogger(__name__)
-
-
-class RpcCarrotTestCase(common.BaseRpcTestCase):
-    def setUp(self):
-        self.rpc = impl_carrot
-        super(RpcCarrotTestCase, self).setUp(supports_timeouts=False)
-
-    def test_connectionpool_single(self):
-        """Test that ConnectionPool recycles a single connection."""
-        conn1 = self.rpc.ConnectionPool.get()
-        self.rpc.ConnectionPool.put(conn1)
-        conn2 = self.rpc.ConnectionPool.get()
-        self.rpc.ConnectionPool.put(conn2)
-        self.assertEqual(conn1, conn2)