Update get_view_description to conform to changes in DRF's version

related encode/django-rest-framework#5605

awx/api/swagger.py

@@ -53,7 +53,6 @@ class AutoSchema(DRFAuthSchema):
         return link
 
     def get_description(self, path, method):
-        self.view._request = self.view.request
         setattr(self.view.request, 'swagger_method', method)
         description = super(AutoSchema, self).get_description(path, method)
         return description