Implement disable/enable timers

src/wireguard/router/tests.rs

@@ -3,7 +3,7 @@ use std::sync::atomic::Ordering;
 use std::sync::Arc;
 use std::sync::Mutex;
 use std::thread;
-use std::time::{Duration, Instant};
+use std::time::Duration;
 
 use num_cpus;