Remove _show_resource in mistral

Mistral client (version) > 1 provides ability to directly use
_show_resource in resource, therefore remove unrequired
_show_resource overwrite method in mistral.
Depends-On: I52746d2ef98598fad20df3732991e1b56d234e9a

Change-Id: Idf0043bb1dc9be4bdf3540ae108d5eb225e8f562

heat/engine/resources/openstack/mistral/cron_trigger.py

@@ -141,13 +141,6 @@ class CronTrigger(resource.Resource):
         elif name == self.REMAINING_EXECUTIONS:
             return trigger.remaining_executions
 
-    # TODO(tlashchova): remove this method when mistralclient>1.0.0 is used.
-    def _show_resource(self):
-        cron_trigger = self.client().cron_triggers.get(self.resource_id)
-        if hasattr(cron_trigger, 'to_dict'):
-            super(CronTrigger, self)._show_resource()
-        return cron_trigger._data
-
     def get_live_state(self, resource_properties):
         # Currently mistral just deletes cron trigger that was executed
         # (i.e. remaining execution is reached zero). In this case we can't

heat/engine/resources/openstack/mistral/workflow.py

@@ -599,13 +599,6 @@ class Workflow(signal_responder.SignalResponder,
         elif name == self.ALARM_URL and self.resource_id is not None:
             return six.text_type(self._get_ec2_signed_url())
 
-    # TODO(tlashchova): remove this method when mistralclient>1.0.0 is used.
-    def _show_resource(self):
-        workflow = self.client().workflows.get(self.resource_id)
-        if hasattr(workflow, 'to_dict'):
-            super(Workflow, self)._show_resource()
-        return workflow._data
-
 
 def resource_mapping():
     return {

heat/tests/openstack/mistral/test_cron_trigger.py

@@ -44,6 +44,9 @@ class FakeCronTrigger(object):
         self.remaining_executions = 3
         self._data = {'trigger': 'info'}
 
+    def to_dict(self):
+        return self._data
+
 
 class MistralCronTriggerTest(common.HeatTestCase):
 

heat/tests/openstack/mistral/test_workflow.py

@@ -314,6 +314,9 @@ class FakeWorkflow(object):
         self.name = name
         self._data = {'workflow': 'info'}
 
+    def to_dict(self):
+        return self._data
+
 
 class TestMistralWorkflow(common.HeatTestCase):
     def setUp(self):