Remove source field from creation endpoints

arkindex/documents/api/entities.py

@@ -137,14 +137,12 @@ class EntityCreate(CreateAPIView):
         type = serializer.validated_data['type']
         corpus = serializer.validated_data['corpus']
         metas = serializer.validated_data['metas'] if 'metas' in serializer.data else None
-        source = serializer.validated_data['ner']
         worker_version = serializer.validated_data['worker_version']
         return Entity.objects.create(
             name=name,
             type=type,
             corpus=corpus,
             metas=metas,
-            source=source,
             worker_version=worker_version
         )