Chain up to superclass tearDown in ServerActionsTest

I noticed that HostTestCase was failing if run on its own because
allow_admin_api wasn't set - it worked fine when the full suite was
run because the flag was being leaked from ServerActionsTest.

Change-Id: I9072f84f017125536d1f261165c44413964f5708

Author: markmc

nova/tests/api/openstack/test_server_actions.py

@@ -136,6 +136,7 @@ def setUp(self):
 
     def tearDown(self):
         self.stubs.UnsetAll()
+        super(ServerActionsTest, self).tearDown()
 
     def test_server_bad_body(self):
         body = {}

nova/tests/test_hosts.py

@@ -94,14 +94,17 @@ def test_enable_host(self):
         self.assertEqual(result_c2["status"], "disabled")
 
     def test_host_startup(self):
+        self.flags(allow_admin_api=True)
         result = self.controller.startup(self.req, "host_c1")
         self.assertEqual(result["power_action"], "startup")
 
     def test_host_shutdown(self):
+        self.flags(allow_admin_api=True)
         result = self.controller.shutdown(self.req, "host_c1")
         self.assertEqual(result["power_action"], "shutdown")
 
     def test_host_reboot(self):
+        self.flags(allow_admin_api=True)
         result = self.controller.reboot(self.req, "host_c1")
         self.assertEqual(result["power_action"], "reboot")