convert py2 -> py3

awx/main/models/ha.py

@@ -1,11 +1,9 @@
 # Copyright (c) 2015 Ansible, Inc.
 # All Rights Reserved.
 
-import six
 import random
 from decimal import Decimal
 
-from django.core.exceptions import ValidationError
 from django.core.validators import MinValueValidator
 from django.db import models, connection
 from django.db.models.signals import post_save, post_delete
@@ -31,15 +29,6 @@ from awx.main.models.mixins import RelatedJobsMixin
 __all__ = ('Instance', 'InstanceGroup', 'JobOrigin', 'TowerScheduleState',)
 
 
-def validate_queuename(v):
-    # kombu doesn't play nice with unicode in queue names
-    if v:
-        try:
-            '{}'.format(v.decode('utf-8'))
-        except UnicodeEncodeError:
-            raise ValidationError(_(six.text_type('{} contains unsupported characters')).format(v))
-
-
 class HasPolicyEditsMixin(HasEditsMixin):
 
     class Meta:
@@ -164,7 +153,6 @@ class Instance(HasPolicyEditsMixin, BaseModel):
                                  'memory', 'cpu_capacity', 'mem_capacity'])
 
     def clean_hostname(self):
-        validate_queuename(self.hostname)
         return self.hostname
 
     
@@ -235,7 +223,6 @@ class InstanceGroup(HasPolicyEditsMixin, BaseModel, RelatedJobsMixin):
         app_label = 'main'
 
     def clean_name(self):
-        validate_queuename(self.name)
         return self.name
 
     def fit_task_to_most_remaining_capacity_instance(self, task):