chore(dns): merge DoT settings with DNS settings

internal/dns/plaintext.go

@@ -1,7 +1,6 @@
 package dns
 
 import (
-	"net/netip"
 	"time"
 
 	"github.com/qdm12/dns/v2/pkg/nameserver"
@@ -10,15 +9,7 @@ import (
 func (l *Loop) useUnencryptedDNS(fallback bool) {
 	settings := l.GetSettings()
 
-	// Try with user provided plaintext ip address
-	// if it's not 127.0.0.1 (default for DoT), otherwise
-	// use the first DoT provider ipv4 address found.
-	var targetIP netip.Addr
-	if settings.ServerAddress.Compare(netip.AddrFrom4([4]byte{127, 0, 0, 1})) != 0 {
-		targetIP = settings.ServerAddress
-	} else {
-		targetIP = settings.DoT.GetFirstPlaintextIPv4()
-	}
+	targetIP := settings.GetFirstPlaintextIPv4()
 
 	if fallback {
 		l.logger.Info("falling back on plaintext DNS at address " + targetIP.String())