Update app.py

app.py

@@ -624,17 +624,7 @@ def billing_usage():
     if not check_authorization(request):
         return jsonify({"error": "Unauthorized"}), 401
 
-    end_date = datetime.now()
-    start_date = end_date - timedelta(days=30)
-
     daily_usage = []
-    current_date = start_date
-    while current_date <= end_date:
-        daily_usage.append({
-            "timestamp": int(current_date.timestamp()),
-            "daily_usage": 0
-        })
-        current_date += timedelta(days=1)
 
     return jsonify({
         "object": "list",