Remove HAL initialization from #[embassy::main] macro.

examples/stm32f0/src/bin/hello.rs

@@ -5,11 +5,11 @@
 use defmt::info;
 use embassy_executor::executor::Spawner;
 use embassy_executor::time::{Duration, Timer};
-use embassy_stm32::Peripherals;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner, _p: Peripherals) -> ! {
+async fn main(_spawner: Spawner) -> ! {
+    let _p = embassy_stm32::init(Default::default());
     loop {
         Timer::after(Duration::from_secs(1)).await;
         info!("Hello");