[LoRA] Cleanup LoRA unused code (#29611)

Signed-off-by: Jee Jee Li <pandaleefree@gmail.com>
Co-authored-by: Cyrus Leung <tlleungac@connect.ust.hk>

tests/entrypoints/openai/test_chat.py

@@ -19,6 +19,14 @@ from ...utils import RemoteOpenAIServer
 MODEL_NAME = "HuggingFaceH4/zephyr-7b-beta"
 
 
+@pytest.fixture(scope="module")
+def zephyr_lora_files():
+    """Download zephyr LoRA files once per test session."""
+    from huggingface_hub import snapshot_download
+
+    return snapshot_download(repo_id="typeof/zephyr-7b-beta-lora")
+
+
 @pytest.fixture(scope="module")
 def server(zephyr_lora_files):  # noqa: F811
     args = [