test(huggingface): remove requires marker to avoid extended-tests install check

Author: Accidental-MVP

libs/langchain/tests/unit_tests/chat_models/test_init_chat_model_hf.py

@@ -7,8 +7,6 @@
 
 from langchain.chat_models import init_chat_model
 
-pytestmark = pytest.mark.requires("langchain_huggingface", "transformers")
-
 
 @pytest.fixture()
 def hf_fakes(monkeypatch: pytest.MonkeyPatch) -> SimpleNamespace: