fix docs (#3332)

Author: Sunny-bot1

docs/online_serving/README.md

@@ -137,9 +137,6 @@ When sending requests using openai.Client, these parameters need to be placed in
 
 The following sampling parameters are supported.
 ```python
-bad_words: Optional[List[int]] = None
-# List of forbidden words that the model should avoid generating (default None means no restriction).
-
 top_k: Optional[int] = None
 # Limits the consideration to the top K tokens with the highest probability at each generation step, used to control randomness (default None means no limit).
 

docs/zh/online_serving/README.md

@@ -137,9 +137,6 @@ metadata: Optional[dict] = None
 
 额外采样参数的支持如下：
 ```python
-bad_words: Optional[List[str]] = None
-# 禁止生成的词汇列表，模型会避免输出这些词（默认 None 表示不限制）。
-
 top_k: Optional[int] = None
 # 限制每一步生成时只考虑概率最高的 K 个 token，用于控制随机性（默认 None 表示不限制）。