[#1625] Remove a functional test from test_user.py

The test is no longer valid due to activity streams changes

ckan/tests/functional/test_user.py

@@ -306,10 +306,6 @@ def test_user_create(self):
         assert_equal(user.email, email)
         assert user.password
 
-        # no revision should be created - User is not revisioned
-        rev_id_after_test = model.repo.youngest_revision().id
-        assert_equal(rev_id_before_test, rev_id_after_test)
-
         # check cookies created
         cookie = res.request.environ['HTTP_COOKIE']
         # I think some versions of webob do not produce quotes, hence the 'or'