Remove unused novaclient.tests.unit.v2.utils module

This is an old carry over from pre-testtools days and has a nose import.
Nothing is using it so remove it.

Closes-Bug: #1458272

Change-Id: I01b5d35d2e2aec161bd3dbaecb4670ddf3ee8794

novaclient/tests/unit/v2/utils.py

@@ -1,42 +0,0 @@
-#
-#    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.
-
-from nose.tools import ok_
-
-
-def fail(msg):
-    raise AssertionError(msg)
-
-
-def assert_in(thing, seq, msg=None):
-    msg = msg or "'%s' not found in %s" % (thing, seq)
-    ok_(thing in seq, msg)
-
-
-def assert_not_in(thing, seq, msg=None):
-    msg = msg or "unexpected '%s' found in %s" % (thing, seq)
-    ok_(thing not in seq, msg)
-
-
-def assert_has_keys(dict, required=[], optional=[]):
-    keys = dict.keys()
-    for k in required:
-        assert_in(k, keys, "required key %s missing from %s" % (k, dict))
-    allowed_keys = set(required) | set(optional)
-    extra_keys = set(keys).difference(allowed_keys)
-    if extra_keys:
-        fail("found unexpected keys: %s" % list(extra_keys))
-
-
-def assert_isinstance(thing, kls):
-    ok_(isinstance(thing, kls), "%s is not an instance of %s" % (thing, kls))