Restore original quantity trait and comments

src/benchmark/mod.rs

@@ -442,7 +442,6 @@ impl<'a> Benchmark<'a> {
 
         self.run_cleanup_command(self.command.get_parameters().iter().cloned(), output_policy)?;
 
-        // Keep the existing export representation: seconds and integer byte counts.
         Ok(BenchmarkResult {
             command: self.command.get_name(),
             command_with_unused_parameters: self.command.get_name_with_unused_parameters(),