Drop happy eyeballs inf delay

tractor/_ipc.py

@@ -2,7 +2,6 @@
 Inter-process comms abstractions
 """
 from functools import partial
-import math
 import struct
 import typing
 from typing import Any, Tuple, Optional
@@ -49,9 +48,8 @@ class MsgpackTCPStream:
         assert isinstance(rsockname, tuple)
         self._raddr = rsockname[:2]
 
-        # start and seed first entry to read loop
+        # start first entry to read loop
         self._agen = self._iter_packets()
-        # self._agen.asend(None) is None
 
         self._send_lock = trio.StrictFIFOLock()
 
@@ -225,7 +223,6 @@ class Channel:
 
         stream = await trio.open_tcp_stream(
             *destaddr,
-            happy_eyeballs_delay=math.inf,
             **kwargs
         )
         self.msgstream = self.stream_serializer_type(stream)