Remove todo

Author: sjrl

integrations/google_genai/src/haystack_integrations/components/embedders/google_genai/document_embedder.py

@@ -158,7 +158,6 @@ def _embed_batch(
 
             response = self._client.models.embed_content(**args)
 
-            # TODO Decide if we should return None or empty List
             embeddings = []
             if response.embeddings:
                 for el in response.embeddings: