Apple used the end of its fiscal year yesterday to kill off two services; one it had created itself, the other it bought from outside the company. As previously announced, music social service Ping has been completely removed from iTunes through a silent update. The social service launched in 2010 but a failed attempt to integrate Facebook made users avoid it, and it languished despite the addition of Twitter integration later on. Apple purchased app search service and iOS app Chomp in February to incorporate its discovery technology into its redesigned App Store in iOS 6.