Remove last of the plugins/v3 from unit tests

This is part of the v3 cleanup effort. The last remaining files in the
n/t/u/a/o/c/plugins/v3 directory have been moved to the base directory,
and all references to them have been updated to reflect the new paths.

Partial-Bug: #1462901
Change-Id: I38d97803b1a9caea98a1b043b2bc2ad774add3b3

nova/tests/unit/api/openstack/compute/microversions.py

@@ -19,7 +19,7 @@ import webob
 from nova.api.openstack import extensions
 from nova.api.openstack import wsgi
 from nova.api import validation
-from nova.tests.unit.api.openstack.compute.test_plugins import dummy_schema
+from nova.tests.unit.api.openstack.compute import dummy_schema
 
 ALIAS = 'test-microversions'
 

nova/tests/unit/api/openstack/compute/test_serversV21.py

@@ -300,8 +300,8 @@ class ServersControllerTest(ControllerTest):
         self.assertEqual([(None, None, port, None)], res.as_tuples())
 
     def test_requested_networks_neutronv2_subclass_with_port(self):
-        cls = ('nova.tests.unit.api.openstack.compute'
-               '.test_servers.NeutronV2Subclass')
+        cls = ('nova.tests.unit.api.openstack.compute.test_serversV21.'
+               'NeutronV2Subclass')
         self.flags(network_api_class=cls)
         port = 'eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee'
         requested_networks = [{'port': port}]

setup.cfg

@@ -183,8 +183,8 @@ nova.api.v3.extensions.server.resize =
     disk_config = nova.api.openstack.compute.disk_config:DiskConfig
 
 nova.api.v3.test_extensions =
-    basic = nova.tests.unit.api.openstack.compute.test_plugins.basic:Basic
-    microversions = nova.tests.unit.api.openstack.compute.test_plugins.microversions:Microversions
+    basic = nova.tests.unit.api.openstack.compute.basic:Basic
+    microversions = nova.tests.unit.api.openstack.compute.microversions:Microversions
 
 nova.ipv6_backend =
     rfc2462 = nova.ipv6.rfc2462