Remove unused serializer from ValidateModelVersion

This serializer has not been used since we removed the ValidateModelVersion endpoint in #1728 (closed)

arkindex/training/serializers.py

@@ -314,20 +314,6 @@ class ModelVersionSerializer(serializers.ModelSerializer):
         return obj.s3_url
 
 
-class ModelVersionValidateSerializer(serializers.ModelSerializer):
-    """
-    A serializer used to update a model version to `available` state.
-    """
-    class Meta:
-        model = ModelVersion
-        fields = ("size", "hash", "archive_hash")
-        extra_kwargs = {
-            "size": {"required": True},
-            "hash": {"required": True},
-            "archive_hash": {"required": True},
-        }
-
-
 class DatasetSetSerializer(serializers.ModelSerializer):
     dataset = serializers.HiddenField(
         default=_dataset_from_context,