Update app.py

app.py

@@ -10,7 +10,7 @@ from haystack.components.generators import OpenAIGenerator
 
 load_dotenv()
 
-api_key = os.getenv('API_KEY')
+# api_key = os.getenv('API_KEY')
 MODEL = "microsoft/Phi-3-mini-4k-instruct"
 
 # Set up components