gh-150358: Remove unused _complete_fut attribute from asyncio.StreamWriter (#150359)

diff --git a/Lib/asyncio/streams.py b/Lib/asyncio/streams.py
index a28c11e928f806a1ec6404e11b3d686dcc81ca1b..d6076465f79366fa85f4654b8dde64fa118395d9 100644 (file)
--- a/Lib/asyncio/streams.py
+++ b/Lib/asyncio/streams.py
@@ -321,8 +321,6 @@ class StreamWriter:
         assert reader is None or isinstance(reader, StreamReader)
         self._reader = reader
         self._loop = loop
-        self._complete_fut = self._loop.create_future()
-        self._complete_fut.set_result(None)
 
     def __repr__(self):
         info = [self.__class__.__name__, f'transport={self._transport!r}']