Remove deprecated FindTiedParametersResult (#3786)

Signed-off-by: Yuanyuan Chen <cyyever@outlook.com>

Author: cyyever

src/accelerate/utils/modeling.py

@@ -478,23 +478,6 @@ def get_non_persistent_buffers(module: nn.Module, recurse: bool = False, fqns: b
     return non_persistent_buffers_set
 
 
-class FindTiedParametersResult(list):
-    """
-    This is a subclass of a list to handle backward compatibility for Transformers. Do not rely on the fact this is not
-    a list or on the `values` method as in the future this will be removed.
-    """
-
-    def __init__(self, *args, **kwargs):
-        super().__init__(*args, **kwargs)
-
-    def values(self):
-        warnings.warn(
-            "The 'values' method of FindTiedParametersResult is deprecated and will be removed in Accelerate v1.3.0. ",
-            FutureWarning,
-        )
-        return sum([x[1:] for x in self], [])
-
-
 def check_tied_parameters_in_config(model: nn.Module):
     """
     Check if there is any indication in the given model that some weights should be tied.
@@ -568,7 +551,7 @@ def check_tied_parameters_on_same_device(tied_params, device_map):
             )
 
 
-def find_tied_parameters(model: torch.nn.Module, **kwargs):
+def find_tied_parameters(model: torch.nn.Module, **kwargs) -> list[list[str]]:
     """
     Find the tied parameters in a given model.
 
@@ -620,7 +603,7 @@ def find_tied_parameters(model: torch.nn.Module, **kwargs):
                     tied_param_groups[param_name] = []
                 tied_param_groups[param_name].append(tied_param_name)
 
-    return FindTiedParametersResult([sorted([weight] + list(set(tied))) for weight, tied in tied_param_groups.items()])
+    return [sorted([weight] + list(set(tied))) for weight, tied in tied_param_groups.items()]
 
 
 def retie_parameters(model, tied_params):