remove unused return error

Author: naueramant

example.go

@@ -26,10 +26,7 @@ func main() {
 
 	// create a queue
 
-	q, err := NewSchedule(cli)
-	if err != nil {
-		panic(err)
-	}
+	sch := NewSchedule(cli)
 
 	// add a task
 
@@ -43,12 +40,12 @@ func main() {
 			},
 		)
 
-		if err := q.Add(ctx, task); err != nil {
+		if err := sch.Add(ctx, task); err != nil {
 			panic(err)
 		}
 	}
 
-	if err := q.On(ctx, "test", func(ctx context.Context, task *Task) {
+	if err := sch.On(ctx, "test", func(ctx context.Context, task *Task) {
 		fmt.Printf("Executing: %v %v %v\n", task.Kind, task.ID, task.Interval)
 	}); err != nil {
 		panic(err)

schedule.go

@@ -26,10 +26,10 @@ type ScheduleImpl struct {
 	redisClient *redis.Client
 }
 
-func NewSchedule(redisClient *redis.Client) (Schedule, error) {
+func NewSchedule(redisClient *redis.Client) Schedule {
 	return &ScheduleImpl{
 		redisClient: redisClient,
-	}, nil
+	}
 }
 
 func (s *ScheduleImpl) Add(ctx context.Context, task *Task) error {
@@ -45,8 +45,7 @@ func (s *ScheduleImpl) Add(ctx context.Context, task *Task) error {
 
 	// Find the next execution time
 
-	now := time.Now()
-	nextTick := now.Add(task.Interval).UnixMilli()
+	nextTick := time.Now().Add(task.Interval).UnixMilli()
 
 	// Execute redis script to
 	// add the task to the sorted set