unassign gradio interface to a variable

app.py

@@ -17,7 +17,7 @@ def generate_response(message: str, history) -> str:
     )['choices'][0]['message']['content']
 
 
-demo = gr.ChatInterface(
+gr.ChatInterface(
     fn=generate_response,
     examples=[
         "What Payment Modalities are accepted?",
@@ -29,6 +29,4 @@ demo = gr.ChatInterface(
     Fine tuned on the https://huggingface.co/datasets/bitext/Bitext-customer-support-llm-chatbot-training-dataset dataset. Random seed of 65 was used to select 1k rows from the dataset, find that version at https://huggingface.co/datasets/Victorano/customer-support-1k, all on huggingface. 
     You can find the full source code at (https://github.com/Victoran0/ECommerce-customer-support-chatbot).""",
     theme="HaleyCH/HaleyCH_Theme"
-)
-
-demo.launch()
+).launch()