no firewall rules needed for tcp_nutss_responder; remove unneeded cleanup logic

tcp_nutss_initiator.nim

@@ -23,8 +23,7 @@ type
   PunchProgressCb* = proc() {.async.}
 
 proc cleanup*(puncher: TcpNutssInitiator) {.async.} =
-  while puncher.attempts.len() != 0:
-    await puncher.attempts.pop().deleteFirewallRules() # FIXME: needed?
+  discard
 
 proc initTcpNutssInitiator*(): TcpNutssInitiator =
   randomize()
@@ -84,11 +83,9 @@ proc initiate*(puncher: TcpNutssInitiator, srcPort: Port, dstIp: IpAddress,
                           dstPorts: predictPortRange(dstPorts),
                           future: newFuture[AsyncSocket]("initiate"))
     puncher.attempts.add(attempt)
-    #await attempt.addFirewallRules()
     await attempt.injectSynPackets()
     await progressCb()
     await attempt.future or sleepAsync(Timeout)
-    #await attempt.deleteFirewallRules()
     puncher.attempts.del(puncher.attempts.find(attempt))
     if attempt.future.finished():
       result = attempt.future.read()

tcp_nutss_responder.nim

@@ -16,8 +16,7 @@ type
   TcpNutssResponder* = Puncher[Attempt]
 
 proc cleanup*(puncher: TcpNutssResponder) {.async.} =
-  while puncher.attempts.len() != 0:
-    await puncher.attempts.pop().deleteFirewallRules() # FIXME: needed?
+  discard
 
 proc initTcpNutssResponder*(): TcpNutssResponder =
   TcpNutssResponder()