Removed unused TCP function from network.go

network.go

@@ -2,11 +2,8 @@ package main
 
 import (
   "context"
-  "errors"
   "fmt"
-  "net"
   "net/netip"
-  "syscall"
   "time"
 
   "github.com/soypat/cyw43439"
@@ -172,29 +169,6 @@ func InitNetwork(ssid, pass string) (*NetworkStack, error) {
   }, nil
 }
 
-func (ns *NetworkStack) DialTCP(ctx context.Context, hostIP string, port uint16) (net.Conn, error) {
-  rIP, err := netip.ParseAddr(hostIP)
-  if err != nil {
-    return nil, fmt.Errorf("invalid host IPv4: %w", err)
-  }
-
-  laddr := net.TCPAddrFromAddrPort(netip.AddrPortFrom(ns.localIP, 0))
-  raddr := net.TCPAddrFromAddrPort(netip.AddrPortFrom(rIP, port))
-
-  const sockstream = 0x1
-  c, err := ns.gostack.Socket(ctx, "tcp", syscall.AF_INET, sockstream, laddr, raddr)
-  if err != nil {
-    return nil, fmt.Errorf("socket dial: %w", err)
-  }
-
-  conn, ok := c.(net.Conn)
-  if !ok {
-    return nil, errors.New("socket did not return a stream connection")
-  }
-
-  return conn, nil
-}
-
 func stackLoop(ctx context.Context, stack *xnet.StackAsync, adapter *CywAdapter) {
   frameLength, _ := adapter.MaxFrameLength()
   buf := make([]byte, frameLength)