This is a follow-up to CL 317169, which dropped go1.12 compatibility, and made the golang.org/x/crypto/ed25519 package an alias / wrapper for crypto/ed25519 in stdlib. This patch updates uses within this repository to use stdlib instead of depending on the wrapper. With this patch applied, the only remaining use of the wrapper is in ed25519_test, which appears to be in place to verify compatibility of the wrapper itself. Change-Id: I0195396102a75ae20bdd82ca8ab59855c0eb5cea GitHub-Last-Rev: 24dbec563cbd84bc47bdc7736b0245fc83dd3353 GitHub-Pull-Request: golang/crypto#238 Reviewed-on: https://go-review.googlesource.com/c/crypto/+/448238 Reviewed-by: Bryan Mills <bcmills@google.com> Run-TryBot: Nicola Murino <nicola.murino@gmail.com> Reviewed-by: Nicola Murino <nicola.murino@gmail.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Joedian Reid <joedian@golang.org> Reviewed-by: Roland Shoemaker <roland@golang.org> Reviewed-by: Than McIntosh <thanm@google.com>