Remove trace log for preauthkeys create

This always prints a TRC message on `preauthkeys create`. Since we don't
print anything for `apikeys create` either we might as well remove it.

cmd/headscale/cli/preauthkeys.go

@@ -9,7 +9,6 @@ import (
 	v1 "github.com/juanfont/headscale/gen/go/headscale/v1"
 	"github.com/prometheus/common/model"
 	"github.com/pterm/pterm"
-	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
 	"google.golang.org/protobuf/types/known/timestamppb"
 )
@@ -151,10 +150,6 @@ var createPreAuthKeyCmd = &cobra.Command{
 
 		expiration := time.Now().UTC().Add(time.Duration(duration))
 
-		log.Trace().
-			Dur("expiration", time.Duration(duration)).
-			Msg("expiration has been set")
-
 		request.Expiration = timestamppb.New(expiration)
 
 		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()