Remove unused features in rand

Author: JSorngard

Cargo.lock

@@ -15,7 +15,7 @@ serde_arrays = { version = "0.1.0", optional = true }
 
 [dev-dependencies]
 criterion = { version = "0.5", features = ["html_reports"] }
-rand = "0.8"
+rand = { version = "0.8", default-features = false, features = ["small_rng"] }
 
 [features]
 # Derives the `Serialize` and `Deserialize` traits from [`serde`](https://crates.io/crates/serde) for the `Primes` struct, as well as a few others.

Cargo.toml

@@ -1,6 +1,6 @@
 use const_primes::{is_prime, primes, primes_geq, primes_lt, sieve, sieve_geq, sieve_lt};
 use criterion::{criterion_group, criterion_main, BatchSize, Criterion, Throughput};
-use rand::prelude::*;
+use rand::{rngs::SmallRng, Rng, SeedableRng};
 use std::hint::black_box;
 
 fn benchmarks(c: &mut Criterion) {
@@ -20,7 +20,7 @@ fn benchmarks(c: &mut Criterion) {
 
     {
         const N: u64 = 10_000;
-        let mut rng = StdRng::seed_from_u64(1234567890);
+        let mut rng = SmallRng::seed_from_u64(1234567890);
         let mut primality_testing = c.benchmark_group("primality testing");
         primality_testing.throughput(Throughput::Elements(N));
         primality_testing.bench_function(format!("is_prime on {N} random numbers"), |b| {