Deleting string lists


I have a Passolo Project containing spreadsheets.

There are 14 source spreadsheets, each one contains translations for a specific language.

The project contains 14 target languages.

Once I've imported the 14 source spreadsheets, each of the 14 target languages contains 14 string lists. 

Up until now I've manually deleted the unwanted target string lists, all 182 of them - that's painful!

I'd like to automate this.

I can loop through the target string lists and identify the ones I don't want but I can't programmatically delete the string list.

Visual Studio "offers" me a delete() method, but the automation help does not list it as being available.

Is there another way to delete a stringlist via a program?