chore: support reject proxy type

adapter/inbound/socket.go

@@ -2,8 +2,6 @@ package inbound
 
 import (
 	"net"
-	"net/netip"
-	"strconv"
 
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/transport/socks5"
@@ -21,23 +19,3 @@ func NewSocket(target socks5.Addr, conn net.Conn, source C.Type, additions ...Ad
 
 	return conn, metadata
 }
-
-func NewInner(conn net.Conn, address string) (net.Conn, *C.Metadata) {
-	metadata := &C.Metadata{}
-	metadata.NetWork = C.TCP
-	metadata.Type = C.INNER
-	metadata.DNSMode = C.DNSNormal
-	metadata.Process = C.ClashName
-	if h, port, err := net.SplitHostPort(address); err == nil {
-		if port, err := strconv.ParseUint(port, 10, 16); err == nil {
-			metadata.DstPort = uint16(port)
-		}
-		if ip, err := netip.ParseAddr(h); err == nil {
-			metadata.DstIP = ip
-		} else {
-			metadata.Host = h
-		}
-	}
-
-	return conn, metadata
-}