Remove backwards compatible try/excepts

modeltrans/fields.py

@@ -1,5 +1,6 @@
 from django.core.exceptions import ImproperlyConfigured
-from django.db.models import F, fields
+from django.db.models import F, fields, JSONField
+from django.db.models.fields.json import KeyTextTransform
 from django.db.models.functions import Cast, Coalesce
 from django.utils.translation import gettext
 
@@ -11,14 +12,6 @@
     get_language,
 )
 
-try:
-    # django==3.1 moved JSONField into django.db.models
-    from django.db.models import JSONField
-    from django.db.models.fields.json import KeyTextTransform
-except ImportError:
-    from django.contrib.postgres.fields import JSONField
-    from django.contrib.postgres.fields.jsonb import KeyTextTransform
-
 
 SUPPORTED_FIELDS = (fields.CharField, fields.TextField)
 

modeltrans/utils.py

@@ -1,15 +1,11 @@
 from django.core.exceptions import FieldDoesNotExist
 from django.db.models.constants import LOOKUP_SEP
+from django.db.models.fields.json import KeyTransform
 from django.db.models.lookups import Transform
 from django.utils.translation import get_language as _get_language
 
 from .conf import get_available_languages, get_default_language
 
-try:
-    from django.db.models.fields.json import KeyTransform
-except ImportError:
-    from django.contrib.postgres.fields.jsonb import KeyTransform
-
 
 def get_language():
     """