fix(weaviate): restore comments and remove duplicate async test

Author: Akash504-ai

integrations/weaviate/tests/test_document_store_async.py

@@ -186,19 +186,6 @@ async def test_filter_documents_over_default_limit(self, document_store: Weaviat
                 {"field": "content", "operator": "==", "value": "This is some content"}
             )
 
-    @pytest.mark.asyncio
-    async def test_write_documents_async(self, document_store: WeaviateDocumentStore) -> None:
-        """
-        Test write_documents() with default policy overwrites existing documents.
-        """
-        doc = Document(content="test doc")
-        assert await document_store.write_documents_async([doc]) == 1
-        assert await document_store.count_documents_async() == 1
-
-        doc.content = "test doc 2"
-        assert await document_store.write_documents_async([doc]) == 1
-        assert await document_store.count_documents_async() == 1
-
     @pytest.mark.asyncio
     async def test_write_documents_with_tenant_async(self, document_store):
         doc = Document(content="tenant test doc")