SQLite data cleanup in Windows 8 application

In my windows 8.1 application i am using SQLitePCL on top of SQLite.

I create the tables and populate my test data on application launch.

I only create DB tables if the tables are not existing through SQL is exists keyword in the queries.

Now how do i clean up the populated test data. Do i have to run delete queries when application shuts down ?.

I am testing through Windows simulator 8. Is there no way to clean up the app data which will flush the db in the simulator ?

cheers, Saurav