Remove unnecessary extern crates

Since Rust 2018, these are implied.
2020-08-25 23:29:52 +01:00 · 2020-08-25 23:29:52 +01:00 · 18a85dc3bd
parent 2030fb488b
commit 18a85dc3bd
1 changed files with 0 additions and 13 deletions
--- a/src/lib.rs
+++ b/src/lib.rs
@ -137,19 +137,6 @@
 // Catch documentation errors caused by code changes.
 #![deny(intra_doc_link_resolution_failure)]

-#[cfg(feature = "multicore")]
-extern crate crossbeam;
-
-#[cfg(feature = "multicore")]
-extern crate num_cpus;
-
-#[cfg(test)]
-#[macro_use]
-extern crate hex_literal;
-
-#[cfg(test)]
-extern crate rand;
-
 pub mod domain;
 pub mod gadgets;
 #[cfg(feature = "groth16")]