How do I delete a track from "My Downloads" folder in the app?

After your song is downloaded the "Cloud" icon will become a “square” icon.
1. Click the “square” icon.
2. Click "Yes I am sure."
3. The song will be deleted from the virtual memory of your mobile device and removed from the "My Downloads" folder. (The track will still exist in the "My Tracks" folder)
4. You can click the "Cloud" icon anytime to download it again.