Fix bug (#245)

Co-authored-by: gushiqiao <gushiqiao@sensetime.com>

Author: gushiqiao

llmc/eval/eval_code.py

@@ -66,7 +66,6 @@ def gen_prompt(self, prompt):
             chat_prompt = self.tokenizer.apply_chat_template(
                 chat_prompt,
                 tokenize=False,
-                add_generation_prompt=True
             )
             return chat_prompt