Migrate thirdparty tests to resource_* fixtures

Partially-implements bp resource-cleanup

Change-Id: I562e3894e949aa12d4ee20d7be5cf7ac3cc17e88
diff --git a/tempest/thirdparty/boto/test_s3_objects.py b/tempest/thirdparty/boto/test_s3_objects.py
index db3c1cf..43774c2 100644
--- a/tempest/thirdparty/boto/test_s3_objects.py
+++ b/tempest/thirdparty/boto/test_s3_objects.py
@@ -24,8 +24,8 @@
 class S3BucketsTest(boto_test.BotoTestCase):
 
     @classmethod
-    def setUpClass(cls):
-        super(S3BucketsTest, cls).setUpClass()
+    def resource_setup(cls):
+        super(S3BucketsTest, cls).resource_setup()
         cls.client = cls.os.s3_client
 
     def test_create_get_delete_object(self):