fix tests

lib/tests/test_transaction.py

@@ -142,7 +142,6 @@ class TestTransaction(unittest.TestCase):
         self.assertEqual(tx.estimated_base_size(), 193)
         self.assertEqual(tx.estimated_witness_size(), 0)
         self.assertEqual(tx.estimated_weight(), 772)
-        self.assertEqual(tx.estimated_virtual_size(), 193)
         self.assertEqual(tx.estimated_size(), 193)
 
     # TODO other tests for segwit tx
@@ -153,7 +152,6 @@ class TestTransaction(unittest.TestCase):
         self.assertEqual(tx.estimated_base_size(), 113)
         self.assertEqual(tx.estimated_witness_size(), 109)
         self.assertEqual(tx.estimated_weight(), 561)
-        self.assertEqual(tx.estimated_virtual_size(), 141)
         self.assertEqual(tx.estimated_size(), 141)
 
     def test_errors(self):