remove unecessary `peft` dependency

modeling_hhem_v2.py

@@ -1,6 +1,6 @@
 import torch
 
-from peft import PeftModel
+#from peft import PeftModel
 from transformers import PreTrainedModel, AutoConfig, T5ForTokenClassification, AutoModel, AutoTokenizer, AutoModelForTokenClassification
 
 from .configuration_hhem_v2 import HHEMv2Config
@@ -69,4 +69,4 @@ class HHEMv2ForSequenceClassification(PreTrainedModel):
         raw_scores = transformed_probs[:, 1] # the probability of class 1
         return raw_scores
 
-    
+