func removeChannelGroups(pubnub *messaging.Pubnub, groups []string) {
successChannel := make(chan []byte, 1)
errorChannel := make(chan []byte, 1)
for _, group := range groups {
// fmt.Println("Removing group", group)
pubnub.ChannelGroupRemoveGroup(group, successChannel, errorChannel)
select {
case <-successChannel:
// fmt.Println("Group removed")
case <-errorChannel:
fmt.Println("Channel group removal error")
case <-timeout():
fmt.Println("Channel group removal timeout")
}
}
}
