Update csharp.md

Author: santiagxf

articles/ai-foundry/model-inference/includes/use-chat-reasoning/csharp.md

@@ -72,8 +72,6 @@ ChatCompletionsOptions requestOptions = new ChatCompletionsOptions()
 Response<ChatCompletions> response = client.Complete(requestOptions);
 ```
 
-[!INCLUDE [best-practices](best-practices.md)]
-
 The response is as follows, where you can see the model's usage statistics:
 
 ```csharp