The ailing music recommendation site is struggling to compete with Spotify, and is reverting back to its core technology of 'scrobbling'Last.fm is killing off its "subscription radio" service from 28 April as the CBS-owned company struggles in the face of growing competition. Streaming services to any device from Last.fm's servers will stop, including to mobile phones. It will play songs through a desktop or iPhone app which is still being tested which plays YouTube videos and links to Spotify to allow on-demand. The move will cut a significant part of its revenues, which were split roughly two-to-one between adverts and subscriptions. The company will still offer a subscription tier to remove ads from the ad-supported player and early access to new features...