[This code](https://github.com/apigee/registry/blob/main/server/registry/internal/buildinfo/buildinfo-prev.go) is only used for builds with Go versions prior to 1.18. When that file is removed, [this file](https://github.com/apigee/registry/blob/main/server/registry/internal/buildinfo/buildinfo-1.18.go) should be renamed and [these build tags](https://github.com/apigee/registry/blob/074c047ee4d6cf030d0ea4f50d2dce1a1cdff6ab/server/registry/internal/buildinfo/buildinfo-1.18.go#L15) should be removed.