partners: Remove unnecessary print from voyageai embeddings (#21865)

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Remove unnecessary print from voyageai embeddings

- [x] **Lint and test**: Run `make format`, `make lint` and `make test`
from the root of the package(s) you've modified. See contribution
guidelines for more: https://python.langchain.com/docs/contributing/

If no one reviews your PR within a few days, please @-mention one of
baskaryan, efriis, eyurtsev, hwchase17.

libs/partners/voyageai/langchain_voyageai/embeddings.py

@@ -45,7 +45,6 @@ def default_values(cls, values: dict) -> dict:
         model = values.get("model")
         batch_size = values.get("batch_size")
         if batch_size is None:
-            print("batch size", batch_size)
             values["batch_size"] = 72 if model in ["voyage-2", "voyage-02"] else 7
         return values