address irq nits

examples/rpi-pico-w/src/main.rs

@@ -227,10 +227,4 @@ impl cyw43::SpiBusCyw43 for MySpi {
         self.read(read).await;
         self.cs.set_high();
     }
-
-    async fn wait_for_event(&mut self) {}
-
-    fn clear_event(&mut self) {}
-
-    
 }

examples/rpi-pico-w/src/pio.rs

@@ -170,9 +170,6 @@ where
 
     async fn wait_for_event(&mut self) {
         self.sm.wait_irq(0).await;
-    }
-
-    fn clear_event(&mut self) {
         self.sm.clear_irq(0);
     }
 }