bpo-38405: Make nested subclasses of typing.NamedTuple pickleable. (GH-16641)

diff --git a/Lib/typing.py b/Lib/typing.py
index 2c75a76..0e842ff 100644
--- a/Lib/typing.py
+++ b/Lib/typing.py
@@ -1593,7 +1593,7 @@
                '_fields', '_field_defaults', '_field_types',
                '_make', '_replace', '_asdict', '_source')
 
-_special = ('__module__', '__name__', '__qualname__', '__annotations__')
+_special = ('__module__', '__name__', '__annotations__')
 
 
 class NamedTupleMeta(type):