misc: remove use of python_2_unicode_compatible decorator (#74843)

Python2 is not supported for a long time.

zoo/zoo_data/models.py

@@ -28,7 +28,6 @@ from django.db.models.query import QuerySet, Q
 from django.core.exceptions import ValidationError
 from django.urls import reverse
 from django.utils.encoding import force_text
-from django.utils.six import python_2_unicode_compatible
 from django.utils.translation import gettext_lazy as _
 from django.utils.timezone import now
 from django.contrib.postgres.fields import JSONField
@@ -39,7 +38,6 @@ from .search import Unaccent, Lower, JSONTextRef
 from zoo.zoo_meta.validators import schema_validator
 
 
-@python_2_unicode_compatible
 class Transaction(models.Model):
     created = models.DateTimeField(
         auto_now_add=True,
@@ -93,7 +91,6 @@ class EntityQuerySet(QuerySet):
         return qs
 
 
-@python_2_unicode_compatible
 class CommonData(models.Model):
     def clean(self):
         if self.schema:
@@ -255,7 +252,6 @@ class JobQuerySet(QuerySet):
         return self.filter(**{'content__$classpath': class_path})
 
 
-@python_2_unicode_compatible
 class Job(models.Model):
     '''Store synchronization messages sent to applications'''
     SCHEDULER_STEP = 60 * 5  # 5 minutes

zoo/zoo_nanterre/management/commands/rsu-duplicates.py

@@ -23,7 +23,6 @@ import datetime
 
 import django
 from django.core.management.base import BaseCommand, CommandParser
-from django.utils.six import python_2_unicode_compatible
 from django.utils.timezone import now
 
 from zoo.zoo_nanterre.utils import individu_caption
@@ -31,7 +30,6 @@ from zoo.zoo_nanterre.duplicates import find_duplicates
 from zoo.zoo_nanterre.models import Duplicate
 
 
-@python_2_unicode_compatible
 class Table(object):
     def __init__(self, names):
         self.size = len(names)