Auto merge of #8807 - ehuss:remove-unused-package-features, r=alexcrichton
Auto merge of #8807 - ehuss:remove-unused-package-features, r=alexcrichton

Remove some unused code.

This was accidentally left behind during some earlier reworks.

rust-lang/cargo,rustyhorde/cargo,rustyhorde/cargo,rustyhorde/cargo,eminence/cargo,tshepang/cargo,tshepang/cargo,nipunn1313/cargo,rust-lang/cargo,rustyhorde/cargo,eminence/cargo,nipunn1313/cargo,nipunn1313/cargo,rust-lang/cargo,tshepang/cargo,tshepang/cargo,rust-lang/cargo,eminence/cargo,nipunn1313/cargo,eminence/cargo