This operation is used to delete an list / address book in your account when it is no longer required and executes asynchronously so although the request is acknowledged immediately with a '204 No Content'. it will take some time to complete.

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It can't be used to the 'Test' list, as this a special reserved list for the account.

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Do not use this call to remove all contacts from a list!

This call is designed to remove a list when you have finished with it; to remove all contacts from a list you must use the Delete all contacts from list call, and wait for it to complete using the Get bulk contact deletion progress call before importing more contacts.