I don't have direct knowledge of this specific case, but a lifetime license for a piece of music can be really pricey. They cheaped out by opting in for a 10 year license (console generations are only about 7 years so that makes sense if you don't care too much about something forever-existing on PC), and when it came time for renewal Sega said "Nah." Looks like GOG was willing to pony up.
Even Rockstar with all its wealth has had to patch out songs from previous GTA games because the licenses expired and they couldn't be bothered to renew them. It was notoriously bad for tv shows with dvd/streaming releases because the license to include a song for an over-the-air-broadcast episode is different from one for home media/streaming. Shows like Daria decided to just cut out all the licensed songs, sometimes they replace it with a soundalike (happened with the intro themes to Married with Children and Donald Trump's The Apprentice amusingly enough). Murphy Brown no longer exists because they used a ton of motown throughout the series (live by the libcringe, die by the libcringe).