Fix token name to default

app.py

@@ -67,7 +67,6 @@ model = HfApiModel(
     model_id='Qwen/Qwen2.5-Coder-32B-Instruct',  # it is possible that this model may be overloaded
     # model_id='https://pflgm2locj2t89co.us-east-1.aws.endpoints.huggingface.cloud',
     custom_role_conversions=None,
-    token=os.getenv("HF_KEY")
 )
 
 # Import tool from Hub