remove add-bos-token from qwen2.5 model (#29)

Author: derekk-nm

Qwen/Qwen2.5-7B-Instruct/accuracy/server.yml

@@ -1,6 +1,5 @@
 # https://huggingface.co/Qwen/Qwen2.5-7B-Instruct
 model: "Qwen/Qwen2.5-7B-Instruct"
 trust-remote-code: true
-add-bos-token: false
 tensor-parallel-size: 1
 max-model-len: 8192