Revert "Implement timeout in mplex in order to read reliably close state"

This reverts commit 314cb6e6bf.

libp2p/muxers/mplex/mplex.nim

@@ -23,8 +23,6 @@ import ../muxer,
 logScope:
   topic = "Mplex"
 
-const HandleTimeout = 30.seconds
-
 type
   Mplex* = ref object of Muxer
     remote*: Table[uint, LPChannel]
@@ -61,20 +59,15 @@ proc cleanupChann(m: Mplex, chann: LPChannel, initiator: bool) {.async, inline.}
     m.getChannelList(initiator).del(chann.id)
     trace "cleaned up channel", id = chann.id
 
-proc messageTimeout(t: Duration): Future[Option[Msg]] {.async, inline.} =
-  await sleepAsync(t)
-  return Msg.none
-
 method handle*(m: Mplex) {.async, gcsafe.} =
   trace "starting mplex main loop"
   try:
     while not m.connection.closed:
       trace "waiting for data"
-      let
+      let msg = await m.connection.readMsg()
-        res = await one(m.connection.readMsg(), messageTimeout(HandleTimeout))
-        msg = res.read()
       if msg.isNone:
         trace "connection EOF"
+        # TODO: allow poll with timeout to avoid using `sleepAsync`
         await sleepAsync(1.millis)
         continue