Update app.py

app.py

@@ -1,12 +1,8 @@
 import os
 from openai import OpenAI
-import json
 import gradio as gr
 
-with open('config.json') as f:
-    config = json.load(f)
-
-api_key = config['API_KEY']
+api_key=os.environ.get("OPEN_API_KEY")
 
 client = OpenAI(api_key=api_key)