The go1.25 build constraint is guaranteed to always be satisfied because the go directive is at 1.25.0, so the separated out go125.go file is not needed. Move the assertion that the *xof type implements the hash.XOF interface into a _test.go file to let it happen alongside other tests in this package. Change-Id: I65c886ede4d574a3168f28689f9529aa56586697 Reviewed-on: https://go-review.googlesource.com/c/crypto/+/775781 Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> LUCI-TryBot-Result: golang-scoped@luci-project-accounts.iam.gserviceaccount.com <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Daniel McCarney <daniel@binaryparadox.net> Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com> Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>