clean up

libs/log/handler/friendly.go

@@ -31,12 +31,6 @@ type friendlyHandler struct {
 	levelError string
 }
 
-// groupOrAttrs holds either a group name or a list of slog.Attrs.
-type groupOrAttrs struct {
-	group string      // group name if non-empty
-	attrs []slog.Attr // attrs if non-empty
-}
-
 func NewFriendlyHandler(out io.Writer, opts *Options) slog.Handler {
 	h := &friendlyHandler{out: out, mu: &sync.Mutex{}}
 	if opts != nil {