fix

Author: burrbull

examples/uart-dma-tx.rs

@@ -10,7 +10,6 @@ use core::fmt::Write;
 use hal::dma::{channel::DMAExt, config::DmaConfig, TransferExt};
 use hal::prelude::*;
 use hal::pwr::PwrExt;
-use hal::serial::*;
 use hal::time::ExtU32;
 use hal::{rcc, stm32};
 use stm32g4xx_hal as hal;