message: Remove expired forward compatibility check
diff: @@ -236,10 +236,7 @@ class SparseXentTest(test.TestCase):
  op_names = [
  op.op_def.name for op in sess.graph.get_operations() if op.op_def
  ]
  - if compat.forward_compatible(2019, 4, 25):
  self.assertIn("BatchMatMulV2", op_names)
  - else:
  - self.assertIn("BatchMatMul", op_names)
  print("cross entropy hessian err = ", err)
  self.assertLess(err, 5e-8)
  