Five years ago this week… Microsoft bent the knee to Spotify, announcing the closure of its Groove Music Pass service by the end of 2017, with all its subscribers migrating over to the Swedish streaming service. Microsoft had a decent but half-hearted stab at challenging the likes of Spotify and iTunes with the Windows Store, but its services were not revolutionary enough and never really stood a chance. Spotify was the natural choice of successor for Microsoft, so as not to lend its tech rivals – Apple, Google and Amazon – a helping hand. — Warner Bros Discovery is “absolutely not for sale,” according to CEO David Zaslav, responding to flaky reports coming out of Hollywood last week that a sale to Comcast was being plotted.…