baremetal: Drop unused columns in bm_nodes

Drop these two columns:
* bm_nodes.prov_vlan_id
* bm_nodes.registration_status

And update related code, tests and api_samples.

Change-Id: Iadefc83a00ad9ae5a3bb39f357080299875bdf09

nova/tests/baremetal/db/utils.py

@@ -32,9 +32,7 @@ def new_bm_node(**kwargs):
     h.pm_user = kwargs.pop('pm_user', 'ipmi_user')
     h.pm_password = kwargs.pop('pm_password', 'ipmi_password')
     h.prov_mac_address = kwargs.pop('prov_mac_address', '12:34:56:78:90:ab')
-    h.registration_status = kwargs.pop('registration_status', 'done')
     h.task_state = kwargs.pop('task_state', None)
-    h.prov_vlan_id = kwargs.pop('prov_vlan_id', None)
     h.terminal_port = kwargs.pop('terminal_port', 8000)
     if len(kwargs) > 0:
         raise test.TestingException("unknown field: %s"

nova/tests/test_migrations.py

@@ -1238,3 +1238,9 @@ class TestBaremetalMigrations(BaseMigrationTestCase, CommonTestsMixIn):
     def _post_downgrade_004(self, engine):
         bm_nodes = get_table(engine, 'bm_nodes')
         self.assertNotIn(u'instance_name', [c.name for c in bm_nodes.columns])
+
+    def _check_005(self, engine, data):
+        bm_nodes = get_table(engine, 'bm_nodes')
+        columns = [c.name for c in bm_nodes.columns]
+        self.assertNotIn(u'prov_vlan_id', columns)
+        self.assertNotIn(u'registration_status', columns)