uart_esc: remove timeout printf

src/drivers/uart_esc/uart_esc.cpp

@@ -378,7 +378,6 @@ void task_main(int argc, char *argv[])
 
 		/* Timed out, do a periodic check for _task_should_exit. */
 		if (pret == 0) {
-			PX4_INFO("timeout");
 			continue;
 		}