It was cooperation that couldn't last long, as ever since its release, a lot of AMD Radeon staff quickly moved to Intel. We're talking about Kaby Lake-G, you know the hybrid Intel processor with a Radeon GPU. 

Obviously Intel is working hard on their own new GPU architecture (with that AMD Radeon staff), and as such, it is not really a surprise that the collaboration inebtween Intel and AMD on this front now comes to an end. With a product notification Intel now officially ends Kaby Lake-G. Kaby Lake-G was a CPU linked with an interconnect towards an AMD GPU, a single package with products of two sworn enemies. 

Update: In another product change notification all Kaby Lake chips have been given the status 'Discontinued'. We think Intel might be clearing up room on the 14nm node for other processors.