diff --git a/pandas/core/indexes/base.py b/pandas/core/indexes/base.py
index 1d3efe8bedd94..4c7274c8e5cb2 100644
--- a/pandas/core/indexes/base.py
+++ b/pandas/core/indexes/base.py
@@ -325,13 +325,6 @@ class Index(IndexOpsMixin, PandasObject):
     Index(['a', 'b', 'c'], dtype='object')
     """
 
-    # tolist is not actually deprecated, just suppressed in the __dir__
-    _hidden_attrs: frozenset[str] = (
-        PandasObject._hidden_attrs
-        | IndexOpsMixin._hidden_attrs
-        | frozenset(["contains", "set_value"])
-    )
-
     # To hand over control to subclasses
     _join_precedence = 1