Update nitrokey crate to 0.4.0

This change finally updates the version of the nitrokey crate that we
consume to 0.4.0. Along with that we update rand_core, one of its
dependencies, to 0.5.1. Further more we add cfg-if in version 0.1.10 and
getrandom in version 0.1.13, both of which are now new (non-development)
dependencies.

Import subrepo nitrokey/:nitrokey at e81057037e9b4f370b64c0a030a725bc6bdfb870
Import subrepo cfg-if/:cfg-if at 4484a6faf816ff8058088ad857b0c6bb2f4b02b2
Import subrepo getrandom/:getrandom at d661aa7e1b8cc80b47dabe3d2135b3b47d2858af
Import subrepo rand/:rand at d877ed528248b52d947e0484364a4e1ae59ca502

1 files changed, 1 insertions, 10 deletions

diff --git a/rand/rand_isaac/src/lib.rs b/rand/rand_isaac/src/lib.rs
index 285d631..84cdf21 100644
--- a/rand/rand_isaac/src/lib.rs
+++ b/rand/rand_isaac/src/lib.rs
@@ -16,16 +16,7 @@
 #![deny(missing_debug_implementations)]
 #![doc(test(attr(allow(unused_variables), deny(warnings))))]
 
-#![cfg_attr(not(all(feature="serde1", test)), no_std)]
-
-pub extern crate rand_core;
-
-#[cfg(feature="serde1")] extern crate serde;
-#[cfg(feature="serde1")] #[macro_use] extern crate serde_derive;
-
-// To test serialization we need bincode and the standard library
-#[cfg(all(feature="serde1", test))] extern crate bincode;
-#[cfg(all(feature="serde1", test))] extern crate std as core;
+#![cfg_attr(not(all(feature="serde", test)), no_std)]
 
 pub mod isaac;
 pub mod isaac64;