remove hf preamble

app.py

@@ -12,7 +12,7 @@ with gr.Blocks() as demo:
 
     inference_api = gr.Dropdown(
         label="Inference API",
-        choices=['openrouter', 'hf_inference_api'], #AVAILABLE_PROMPT_FORMATS,
+        choices=['openrouter', 'inference_api'],
         value="openrouter"
     )
     model_name = gr.Textbox(label="Model Name (e.g., qwen/qwen-2.5-72b-instruct)")