remove iterator related changes

async.go

@@ -3,7 +3,6 @@ package gubgub
 import (
 	"context"
 	"fmt"
-	"iter"
 	"sync"
 )
 
@@ -121,32 +120,6 @@ func (t *AsyncTopic[T]) Subscribe(fn Subscriber[T]) error {
 	return nil
 }
 
-// Feed allows the usage of for/range to consume future published messages. The supporting subscriber will eventually be discarded after you exit the for loop.
-func (t *AsyncTopic[T]) Feed() iter.Seq[T] {
-	feed := make(chan T, 1)
-	done := make(chan struct{})
-
-	t.Subscribe(func(msg T) bool {
-		select {
-		case feed <- msg:
-			return true
-		case <-done:
-			close(feed)
-			return false
-		}
-	})
-
-	return func(yield func(T) bool) {
-		defer close(done)
-
-		for msg := range feed {
-			if !yield(msg) {
-				return
-			}
-		}
-	}
-}
-
 type AsyncTopicOptions struct {
 	onClose     func()
 	onSubscribe func(count int)