Remove non-used return params of AskOnce.

Author: johnteee

README.md

@@ -338,7 +338,7 @@ timeout = 10 * time.Millisecond
 
 // Normal cases
 // Result would be 10
-actual, _ = AskNewGenerics[interface{}, int](1).AskOnce(actorRoot)
+actual = AskNewGenerics[interface{}, int](1).AskOnce(actorRoot)
 // Ask with Timeout
 // Result would be 20
 actual, _ = AskNewGenerics[interface{}, int](2).AskOnceWithTimeout(actorRoot, timeout)

actor.go

@@ -156,12 +156,12 @@ func AskNewByOptionsGenerics[T any, R any](message T, ioCh chan R) *AskDef[T, R]
 }
 
 // AskOnce Sender Ask
-func (askSelf *AskDef[T, R]) AskOnce(target ActorHandle[interface{}]) (R, error) {
+func (askSelf *AskDef[T, R]) AskOnce(target ActorHandle[interface{}]) R {
 	ch := askSelf.AskChannel(target)
 	defer close(ch)
 	// var err error
 
-	return <-ch, nil
+	return <-ch
 }
 
 // AskOnceWithTimeout Sender Ask with timeout

actor_test.go

@@ -112,7 +112,7 @@ func TestActorAsk(t *testing.T) {
 
 	// Normal cases
 	expectedInt = 10
-	actual, _ = AskNewGenerics[interface{}, int](1).AskOnce(actorRoot)
+	actual = AskNewGenerics[interface{}, int](1).AskOnce(actorRoot)
 	assert.Equal(t, expectedInt, actual)
 	// Ask with Timeout
 	expectedInt = 20