cleanup: remove unnecessary 'mut' and '.clone()'

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>

src/tools/async_channel_writer.rs

@@ -58,7 +58,7 @@ impl AsyncChannelWriter {
                         }
                     }
 
-                    let mut sender = match self.sender.take() {
+                    let sender = match self.sender.take() {
                         Some(sender) => sender,
                         None => return Poll::Ready(Err(io_err_other("no sender"))),
                     };

src/tools/broadcast_future.rs

@@ -159,7 +159,7 @@ fn test_broadcast_future() {
         .map_err(|err| { panic!("got error {}", err); })
         .map(|_| ());
 
-    let mut rt = tokio::runtime::Runtime::new().unwrap();
+    let rt = tokio::runtime::Runtime::new().unwrap();
     rt.block_on(async move {
         let r1 = tokio::spawn(receiver1);
         let r2 = tokio::spawn(receiver2);