BOT COMMANDS QUEUE DEL
Usage: MSG <botname> QUEUE #<name> DEL

Deletes a queue

Example:
/msg SupportBot queue Event del

Do not mistake this command as one that will delete a specific message. This will delete the entire message queue. Once that is done there is no recovering any messages that were in that queue. To delete messages in a queue see the BOT COMMANDS QUEUE REMOVE command.