Update model_utils.py

utils/model_utils.py

-import bitsandbytes as bnb
 import torch
 from transformers.trainer_pt_utils import LabelSmoother
 
@@ -6,7 +5,7 @@ IGNORE_TOKEN_ID = LabelSmoother.ignore_index
 
 
 def find_all_linear_names(use_8bit, model):
-    cls = bnb.nn.Linear8bitLt if use_8bit else torch.nn.Linear
+    cls = torch.nn.Linear
     lora_module_names = set()
     for name, module in model.named_modules():
         if isinstance(module, cls):