diff --git a/nova/tests/unit/virt/ironic/test_driver.py b/nova/tests/unit/virt/ironic/test_driver.py
index dadc6b8c759e..2007d9b30162 100644
--- a/nova/tests/unit/virt/ironic/test_driver.py
+++ b/nova/tests/unit/virt/ironic/test_driver.py
@@ -445,38 +445,6 @@ class IronicDriverTestCase(test.NoDBTestCase):
         self.assertEqual(expected_props, parsed)
         self.assertEqual(4, mock_warning.call_count)
 
-    @mock.patch.object(ironic_driver.LOG, 'warning')
-    def test__parse_node_instance_info(self, mock_warning):
-        props = _get_properties()
-        instance_info = _get_instance_info()
-        node = ironic_utils.get_test_node(
-            uuid=uuidutils.generate_uuid(),
-            instance_info=instance_info)
-        parsed = self.driver._parse_node_instance_info(node, props)
-
-        self.assertEqual(instance_info, parsed)
-        self.assertFalse(mock_warning.called)
-
-    @mock.patch.object(ironic_driver.LOG, 'warning')
-    def test__parse_node_instance_info_bad_values(self, mock_warning):
-        props = _get_properties()
-        instance_info = _get_instance_info()
-        instance_info['vcpus'] = 'bad-value'
-        instance_info['memory_mb'] = 'bad-value'
-        instance_info['local_gb'] = 'bad-value'
-        node = ironic_utils.get_test_node(
-            uuid=uuidutils.generate_uuid(),
-            instance_info=instance_info)
-        parsed = self.driver._parse_node_instance_info(node, props)
-
-        expected = {
-            'vcpus': props['cpus'],
-            'memory_mb': props['memory_mb'],
-            'local_gb': props['local_gb']
-        }
-        self.assertEqual(expected, parsed)
-        self.assertEqual(3, mock_warning.call_count)
-
     @mock.patch.object(ironic_driver.LOG, 'warning')
     def test__parse_node_properties_canonicalize_cpu_arch(self, mock_warning):
         props = _get_properties()
diff --git a/nova/virt/ironic/driver.py b/nova/virt/ironic/driver.py
index 8331a7d91b6d..3b45946a9350 100644
--- a/nova/virt/ironic/driver.py
+++ b/nova/virt/ironic/driver.py
@@ -251,33 +251,6 @@ class IronicDriver(virt_driver.ComputeDriver):
         properties['capabilities'] = node.properties.get('capabilities')
         return properties
 
-    def _parse_node_instance_info(self, node, props):
-        """Helper method to parse the node's instance info.
-
-        If a property cannot be looked up via instance_info, use the original
-        value from the properties dict. This is most likely to be correct;
-        it should only be incorrect if the properties were changed directly
-        in Ironic while an instance was deployed.
-        """
-        instance_info = {}
-
-        # add this key because it's different in instance_info for some reason
-        props['vcpus'] = props['cpus']
-        for prop in ('vcpus', 'memory_mb', 'local_gb'):
-            original = props[prop]
-            try:
-                instance_info[prop] = int(node.instance_info.get(prop,
-                                                                 original))
-            except (TypeError, ValueError):
-                LOG.warning('Node %(uuid)s has a malformed "%(prop)s". '
-                            'It should be an integer but its value '
-                            'is "%(value)s".',
-                            {'uuid': node.uuid, 'prop': prop,
-                             'value': node.instance_info.get(prop)})
-                instance_info[prop] = original
-
-        return instance_info
-
     def _node_resource(self, node):
         """Helper method to create resource dict from node stats."""
         properties = self._parse_node_properties(node)