Obsolete oslo-incubator modules - jsonutils (now oslo.serialization)

This change is part of a multi-part change set to handle obsolete and
graduated oslo modules. This commit handles the jsonutils module which
is now oslo.serialization.jsonutils. The change here is to remove it
from openstack-common.conf and point all people who used to use that
at oslo.serialization. requirements.txt has been updated to point to
this dependency.

The file jsonutils.py is not being deleted because of dependencies in
oslo-incubator.

Change has been rebased on https://review.openstack.org/#/c/129294/

Change-Id: I2a7d4c41ce77d6375fa08033514baa815a087016
Partial-Bug: #1380789
blueprint: retire-unused-oslo-incubator-modules

openstack-common.conf

@@ -6,7 +6,6 @@ module=eventlet_backdoor
 module=exception
 module=fileutils
 module=gettextutils
-module=jsonutils
 module=local
 module=log
 module=loopingcall

requirements.txt

@@ -28,7 +28,8 @@ jsonschema>=2.0.0,<3.0.0
 Jinja2>=2.6  # BSD License (3 clause)
 pexpect>=3.1 # ISC License
 oslo.config>=1.4.0  # Apache-2.0
-oslo.utils>=1.1.0                       # Apache-2.0
+oslo.serialization>=1.0.0
+oslo.utils>=1.1.0
 MySQL-python
 Babel>=1.3
 six>=1.7.0

trove/common/limits.py

@@ -30,7 +30,7 @@
 
 from trove.common import cfg
 from trove.common import wsgi as base_wsgi
-from trove.openstack.common import jsonutils
+from oslo.serialization import jsonutils
 from trove.openstack.common import wsgi
 from trove.openstack.common.gettextutils import _
 

trove/common/wsgi.py

@@ -30,7 +30,7 @@
 from trove.common import exception
 from trove.common import utils
 from trove.openstack.common.gettextutils import _
-from trove.openstack.common import jsonutils
+from oslo.serialization import jsonutils
 
 from trove.openstack.common import pastedeploy
 from trove.openstack.common import service

trove/tests/unittests/api/common/test_limits.py

@@ -29,7 +29,7 @@
 from trove.common.limits import Limit
 from trove.limits import views
 from trove.limits.service import LimitsController
-from trove.openstack.common import jsonutils
+from oslo.serialization import jsonutils
 from trove.quota.quota import QUOTAS
 
 TEST_LIMITS = [