[Fix] Update yi 200k config (#815)

configs/models/yi/hf_yi_6b_200k.py

 from opencompass.models import HuggingFace
 
 
-_meta_template = dict(
-    round=[
-        dict(role="HUMAN", end='\n\n'),
-        dict(role="BOT", begin="### Response:", end='</s>', generate=True),
-    ],
-)
-
 models = [
     dict(
         type=HuggingFace,
@@ -23,11 +16,9 @@ models = [
             truncation_side='left',
             trust_remote_code=True,
         ),
-        meta_template=_meta_template,
         max_out_len=100,
         max_seq_len=2048,
         batch_size=8,
         run_cfg=dict(num_gpus=1, num_procs=1),
-        end_str='</s>',
     )
 ]