Disabled the template_history endpoint

- Updated tests and added a new mock_get_monthly_template_usage
- Deleted get_monthly_template_statistics_for_service
- Added new test to test the redirection of the old endpoint

app/main/views/dashboard.py

@@ -81,7 +81,7 @@ def template_history(service_id):
 
 @main.route("/services/<service_id>/template-usage")
 @login_required
-@user_has_permissions(admin_override=True)
+@user_has_permissions('view_activity', admin_override=True)
 def template_usage(service_id):
 
     year, current_financial_year = requested_and_current_financial_year(request)

app/notify_client/template_statistics_api_client.py

@@ -20,12 +20,6 @@ class TemplateStatisticsApiClient(NotifyAdminAPIClient):
             params=params
         )['data']
 
-    def get_monthly_template_statistics_for_service(self, service_id, year):
-
-        return self.get(
-            url='/service/{}/notifications/templates/monthly?year={}'.format(service_id, year)
-        )['data']
-
     def get_monthly_template_usage_for_service(self, service_id, year):
 
         return self.get(