message: use expected parameter as is in sparse_test
diff: @@ -56,9 +56,7 @@ def _test_any_sparse_combinations():
  classes_fn=combinations.NamedObject(
  "classes_fn.{}".format(name), classes_fn
  ),
  - expected=combinations.NamedObject(
  - "expected.{}".format(name), expected
  - )
  + expected=expected
  )
  return functools.reduce(reduce_fn, cases, [])
  @@ -415,7 +413,6 @@ class SparseTest(test_base.DatasetTestBase, parameterized.TestCase):
  )
  def testAnySparse(self, classes_fn, expected):
  classes = classes_fn()
  - expected = expected._obj # pylint: disable=protected-access
  self.assertEqual(sparse.any_sparse(classes), expected)
  def assertShapesEqual(self, a, b):
  