Fixed #28893 -- Removed unnecessary dict.items() calls.

tests/backends/postgresql/test_creation.py

@@ -33,7 +33,7 @@ class DatabaseCreationTests(SimpleTestCase):
         try:
             yield
         finally:
-            for name, value in kwargs.items():
+            for name in kwargs:
                 if name in saved_values:
                     settings[name] = saved_values[name]
                 else: