Removes a text message (SMS) from the sending queue
- string RemoveSMSQueue(string accessKey, int deliveryID, int scheduleID, bool deleteQueue)
- accessKey: access key obtained using the LoginFromId method
- deliveryID: ID of the delivery
- scheduleID: ID of the schedule
- deleteQueue: boolean value to indicate whether to delete the queue or not. If false, the message will be removed from the "sms in the sending queue"" or "scheduled sms", and moved to the "sms waiting to be sent"