gh-105430: Remove `typing._Immutable` unused internal helper (#105434)

1 files changed, 0 insertions, 11 deletions

diff --git a/Lib/typing.py b/Lib/typing.py
index b6c8d8a..307b26f 100644
--- a/Lib/typing.py
+++ b/Lib/typing.py
@@ -419,17 +419,6 @@ class _Final:
         if '_root' not in kwds:
             raise TypeError("Cannot subclass special typing classes")
 
-class _Immutable:
-    """Mixin to indicate that object should not be copied."""
-
-    __slots__ = ()
-
-    def __copy__(self):
-        return self
-
-    def __deepcopy__(self, memo):
-        return self
-
 
 class _NotIterable:
     """Mixin to prevent iteration, without being compatible with Iterable.