Deleting playlist from usb stick

Hi I'm Akseli and im a rookie DJ!

I have felt in love with your Rekordbox software and I'm using it to manage and to play my music. My only problem (besids my lowsy playing skill) is that i can't figure out how to delete a playlist from my USB stick. I have changed a name of one of my playlists but the old playlist is still there and i want to get rid of it.

Thanks for yourhelp!