diff --git a/src/lerobot/datasets/utils.py b/src/lerobot/datasets/utils.py
index c78f16cd2..f6a5cb4c7 100644
--- a/src/lerobot/datasets/utils.py
+++ b/src/lerobot/datasets/utils.py
@@ -20,7 +20,6 @@ import logging
 from collections.abc import Iterator
 from pathlib import Path
 from pprint import pformat
-from types import SimpleNamespace
 from typing import Any
 
 import datasets
@@ -645,61 +644,6 @@ def create_lerobot_dataset_card(
     )
 
 
-class IterableNamespace(SimpleNamespace):
-    """
-    A namespace object that supports both dictionary-like iteration and dot notation access.
-    Automatically converts nested dictionaries into IterableNamespaces.
-
-    This class extends SimpleNamespace to provide:
-    - Dictionary-style iteration over keys
-    - Access to items via both dot notation (obj.key) and brackets (obj["key"])
-    - Dictionary-like methods: items(), keys(), values()
-    - Recursive conversion of nested dictionaries
-
-    Args:
-        dictionary: Optional dictionary to initialize the namespace
-        **kwargs: Additional keyword arguments passed to SimpleNamespace
-
-    Examples:
-        >>> data = {"name": "Alice", "details": {"age": 25}}
-        >>> ns = IterableNamespace(data)
-        >>> ns.name
-        'Alice'
-        >>> ns.details.age
-        25
-        >>> list(ns.keys())
-        ['name', 'details']
-        >>> for key, value in ns.items():
-        ...     print(f"{key}: {value}")
-        name: Alice
-        details: IterableNamespace(age=25)
-    """
-
-    def __init__(self, dictionary: dict[str, Any] = None, **kwargs):
-        super().__init__(**kwargs)
-        if dictionary is not None:
-            for key, value in dictionary.items():
-                if isinstance(value, dict):
-                    setattr(self, key, IterableNamespace(value))
-                else:
-                    setattr(self, key, value)
-
-    def __iter__(self) -> Iterator[str]:
-        return iter(vars(self))
-
-    def __getitem__(self, key: str) -> Any:
-        return vars(self)[key]
-
-    def items(self):
-        return vars(self).items()
-
-    def values(self):
-        return vars(self).values()
-
-    def keys(self):
-        return vars(self).keys()
-
-
 def validate_frame(frame: dict, features: dict) -> None:
     expected_features = set(features) - set(DEFAULT_FEATURES)
     actual_features = set(frame)