chore: remove unnecessary conversion (#1332)

tokio-timer/src/timer/atomic_stack.rs

@@ -34,7 +34,7 @@ impl AtomicStack {
     /// on the stack, `Err` if the timer is shutdown.
     pub fn push(&self, entry: &Arc<Entry>) -> Result<bool, Error> {
         // First, set the queued bit on the entry
-        let queued = entry.queued.fetch_or(true, SeqCst).into();
+        let queued = entry.queued.fetch_or(true, SeqCst);
 
         if queued {
             // Already queued, nothing more to do

tokio-timer/src/timer/entry.rs

@@ -302,7 +302,7 @@ impl Entry {
 
         self.waker.register_by_ref(cx.waker());
 
-        curr = self.state.load(SeqCst).into();
+        curr = self.state.load(SeqCst);
 
         if is_elapsed(curr) {
             return Poll::Ready(if curr == ERROR {