Remove create_instance override

Horizon removed the Django-based implementation of launch instance [1]
which was overriden by cloudkitty-dashboard. Remove override to avoid
breaking Horizon when cloudkitty-dashboard is enabled.

[1] https://review.opendev.org/c/openstack/horizon/+/816303

Change-Id: Ib6516cfb4d9bbe75ddb62969f62629712afca38b
Story: 2009924
Task: 44788

cloudkittydashboard/enabled/_11_project_rating_panel.py

@@ -19,6 +19,3 @@ PANEL = 'rating'
 # Python panel class of the PANEL to be added.
 ADD_PANEL = \
     'cloudkittydashboard.dashboards.project.rating.panel.Project_rating'
-
-UPDATE_HORIZON_CONFIG = {'customization_module':
-                         "cloudkittydashboard.overrides"}

cloudkittydashboard/overrides.py

@@ -1,37 +0,0 @@
-# -*- coding: utf-8 -*-
-# Copyright 2015 Objectif Libre
-#
-# Licensed under the Apache License, Version 2.0 (the "License"); you may
-# not use this file except in compliance with the License. You may obtain
-# a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-# License for the specific language governing permissions and limitations
-# under the License.
-#
-
-from django.utils.translation import gettext_lazy as _
-from openstack_dashboard.dashboards.project.instances.workflows \
-    import create_instance
-
-
-# Instances Panel
-class InstancePredictivePricing(create_instance.SetInstanceDetailsAction):
-    class Meta(object):
-        name = _("Details")
-        help_text_template = ("project/rating/"
-                              "_launch_details_price.html")
-
-    def get_help_text(self, extra_context=None):
-        extra = extra_context or {}
-        extra['price'] = 0
-        extra = super(InstancePredictivePricing,
-                      self).get_help_text(extra_context=extra)
-        return extra
-
-
-create_instance.SetInstanceDetails.action_class = InstancePredictivePricing

releasenotes/notes/create-instance-override-8a2cfc152365d5d5.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Fixes compatibility with Horizon 21.0.0 and newer following the removal of
+    the Django-based implementation of launch instance.