code cleanup

ds.go

@@ -64,15 +64,9 @@ type modify_t[T constraints.Ordered] struct {
 	ch chan T
 }
 type DynamicMultiChan[T constraints.Ordered] struct {
-	TX chan T
-	RX chan T
-	// used        map[int]bool
-	// list        []chan T
-	// reloadTX    chan struct{}
-	// reloadRX    chan struct{}
-	// selectCases []reflect.SelectCase
-	reply bool
-	// delta       *Stack[int]
+	TX     chan T
+	RX     chan T
+	reply  bool
 	modify chan modify_t[T]
 }