Fix clippy warning

src/section_runner.rs

@@ -196,11 +196,7 @@ impl RunnerTask {
 
     fn process_queue(&mut self, run_queue: &mut VecDeque<SecRun>) {
         use RunState::*;
-        loop {
-            let current_run = match run_queue.front_mut() {
-                Some(current_run) => current_run,
-                None => break,
-            };
+        while let Some(current_run) = run_queue.front_mut() {
             let run_finished = match (&current_run.state, self.paused) {
                 (Waiting, false) => {
                     self.start_run(current_run);