Removed deadline, version, extra & host_aggregate

As we are about to version the Watcher objects, we need to make sure
that upcoming model/object modifications are additive in order to
avoid having to bump the major version of the API. Therefore,
this changeset removes 4 unused DB fields that were exposed in their
associated Watcher objects (i.e. AuditTemplate and Audit).

Change-Id: Ifb0783f21cd66db16b31e3c8e376fc9d6c07dea3
Partially-Implements: blueprint watcher-versioned-objects

watcher_tempest_plugin/services/infra_optim/v1/json/client.py

@@ -62,7 +62,7 @@ class InfraOptimClientJSON(base.BaseInfraOptimClient):
         :param description: The description of the audit template.
         :param goal_uuid: The related Goal UUID associated.
         :param strategy_uuid: The related Strategy UUID associated.
-        :param extra: Metadata associated to this audit template.
+        :param audit_scope: Scope the audit should apply to.
         :return: A tuple with the server response and the created audit
                  template.
         """
@@ -76,7 +76,7 @@ class InfraOptimClientJSON(base.BaseInfraOptimClient):
             'description': parameters.get('description'),
             'goal': parameters.get('goal'),
             'strategy': parameters.get('strategy'),
-            'extra': parameters.get('extra', {}),
+            'scope': parameters.get('scope', []),
         }
 
         return self._create_request('audit_templates', audit_template)