Fix compilation warnings in osnet.nim

Fix non stable stream tests.

chronos/transports/osnet.nim

@@ -1173,35 +1173,6 @@ elif defined(windows):
   import winlean, dynlib
 
   const
-    IfOperStatusUp = cint(1)
-    IfOperStatusDown = cint(2)
-    IfOperStatusTesting = cint(3)
-    IfOperStatusUnknown = cint(4)
-    IfOperStatusDormant = cint(5)
-    IfOperStatusNotPresent = cint(6)
-    IfOperStatusLowerLayerDown = cint(7)
-
-    IpPrefixOriginOther = cint(0)
-    IpPrefixOriginManual = cint(1)
-    IpPrefixOriginWellKnown = cint(2)
-    IpPrefixOriginDhcp = cint(3)
-    IpPrefixOriginRouterAdvertisement = cint(4)
-    IpPrefixOriginUnchanged = cint(1) shl 4
-
-    IpSuffixOriginOther = cint(0)
-    IpSuffixOriginManual = cint(1)
-    IpSuffixOriginWellKnown = cint(2)
-    IpSuffixOriginDhcp = cint(3)
-    IpSuffixOriginLinkLayerAddress = cint(4)
-    IpSuffixOriginRandom = cint(5)
-    IpSuffixOriginUnchanged = cint(1) shl 4
-
-    IpDadStateInvalid = cint(0)
-    IpDadStateTentative = cint(1)
-    IpDadStateDuplicate = cint(2)
-    IpDadStateDeprecated = cint(3)
-    IpDadStatePreferred = cint(4)
-
     WorkBufferSize = 16384'u32
     MaxTries = 3
 
@@ -1297,10 +1268,6 @@ elif defined(windows):
       dwForwardMetric4: uint32
       dwForwardMetric5: uint32
 
-    NET_LUID = object
-      value: uint64
-      info: uint64
-
     SOCKADDR_INET {.union.} = object
       ipv4: Sockaddr_in
       ipv6: Sockaddr_in6

tests/teststream.nim

@@ -693,13 +693,16 @@ suite "Stream Transport test suite":
       discard
 
   proc testWriteConnReset(address: TransportAddress): Future[int] {.async.} =
+    var syncFut = newFuture[void]()
     proc client(server: StreamServer, transp: StreamTransport) {.async.} =
       await transp.closeWait()
+      syncFut.complete()
     var n = 10
     var server = createStreamServer(address, client, {ReuseAddr})
     server.start()
     var msg = "HELLO"
     var ntransp = await connect(address)
+    await syncFut
     while true:
       var res = await ntransp.write(msg)
       if res == 0: