Clippy fixes

Author: jmfrank63

governor/src/clock/quanta.rs

@@ -136,7 +136,7 @@ mod test {
     fn quanta_upkeep_impls_coverage() {
         let one_ns = Nanos::new(1);
         let c = QuantaUpkeepClock::from_interval(Duration::from_secs(1)).unwrap();
-        let n = c.clone();
+        let n = c;
         let now = n.now();
         assert_ne!(now + one_ns, now);
         assert_eq!(one_ns, Reference::duration_since(&(now + one_ns), now));

governor/src/clock/with_std.rs

@@ -111,7 +111,7 @@ mod test {
 
         let c = MonotonicClock::default();
         format!("{:?}", c);
-        let n = c.clone();
+        let n = c;
         let now = n.now();
         let ns_dur = Duration::from(one_ns);
         assert_ne!(now + ns_dur, now, "{:?} + {:?}", ns_dur, now);