Update nitrokey crate to 0.3.3

This change updates the nitrokey crate to version 0.3.3. Along with that
change we update rand to 0.6.4 because rand 0.6.1 does not yet contain a
publicly accessible rand_os. Note that we no longer require all
crates in rand's workspace, but only rand_os and rand_core, which is a
significant reduction in the number of lines of code compiled.

Import subrepo nitrokey/:nitrokey at 7cf747d56ddc0b7eeedc3caf36dcc909907a171c
Import subrepo rand/:rand at 4336232dda03323634b10ec72ddf27914aebc3a2

1 files changed, 2 insertions, 37 deletions

diff --git a/rand/src/rngs/mod.rs b/rand/src/rngs/mod.rs
index 70c4506..847fc94 100644
--- a/rand/src/rngs/mod.rs
+++ b/rand/src/rngs/mod.rs
@@ -178,40 +178,5 @@ pub use self::small::SmallRng;
 pub use self::std::StdRng;
 #[cfg(feature="std")] pub use self::thread::ThreadRng;
 
-#[cfg(all(feature="std",
-          any(target_os = "linux", target_os = "android",
-              target_os = "netbsd",
-              target_os = "dragonfly",
-              target_os = "haiku",
-              target_os = "emscripten",
-              target_os = "solaris",
-              target_os = "cloudabi",
-              target_os = "macos", target_os = "ios",
-              target_os = "freebsd",
-              target_os = "openbsd", target_os = "bitrig",
-              target_os = "redox",
-              target_os = "fuchsia",
-              windows,
-              all(target_arch = "wasm32", feature = "stdweb"),
-              all(target_arch = "wasm32", feature = "wasm-bindgen"),
-)))]
-mod os;
-
-#[cfg(all(feature="std",
-          any(target_os = "linux", target_os = "android",
-              target_os = "netbsd",
-              target_os = "dragonfly",
-              target_os = "haiku",
-              target_os = "emscripten",
-              target_os = "solaris",
-              target_os = "cloudabi",
-              target_os = "macos", target_os = "ios",
-              target_os = "freebsd",
-              target_os = "openbsd", target_os = "bitrig",
-              target_os = "redox",
-              target_os = "fuchsia",
-              windows,
-              all(target_arch = "wasm32", feature = "stdweb"),
-              all(target_arch = "wasm32", feature = "wasm-bindgen"),
-)))]
-pub use self::os::OsRng;
+#[cfg(feature="rand_os")]
+pub use rand_os::OsRng;