remove a debug print

src/traits/track/one_step.rs

@@ -70,7 +70,6 @@ where
         if mbox.pt.coord.mag() > sys.chart_switch_threshold {
             #[cfg(debug_assertions)]
             println!("Changing chart ({} to {})...", mbox.pt.chart, mbox.pt.canonical_chart());
-            println!("{}", Ctx::get_prec());
             let chart = mbox.pt.canonical_chart();
             mbox = GToChart::to_chart(sys, mbox, chart, 0.75)?;
             mbox.mut_squash();