chore: cleanup error using of dialer.DefaultInterface

dns/client.go

@@ -8,7 +8,6 @@ import (
 	"net/netip"
 	"strings"
 
-	"github.com/Dreamacro/clash/common/atomic"
 	"github.com/Dreamacro/clash/component/ca"
 	"github.com/Dreamacro/clash/component/dialer"
 	"github.com/Dreamacro/clash/component/resolver"
@@ -23,7 +22,7 @@ type client struct {
 	r            *Resolver
 	port         string
 	host         string
-	iface        atomic.TypedValue[string]
+	iface        string
 	proxyAdapter C.ProxyAdapter
 	proxyName    string
 	addr         string
@@ -74,8 +73,8 @@ func (c *client) ExchangeContext(ctx context.Context, m *D.Msg) (*D.Msg, error)
 	}
 
 	var options []dialer.Option
-	if c.iface.Load() != "" {
-		options = append(options, dialer.WithInterface(c.iface.Load()))
+	if c.iface != "" {
+		options = append(options, dialer.WithInterface(c.iface))
 	}
 
 	conn, err := getDialHandler(c.r, c.proxyAdapter, c.proxyName, options...)(ctx, network, net.JoinHostPort(ip.String(), c.port))