Remove nightly and unstable-traits features in preparation for 1.75.

embassy-net-adin1110/src/lib.rs

@@ -1,6 +1,5 @@
 #![deny(clippy::pedantic)]
-#![feature(async_fn_in_trait)]
-#![allow(stable_features, unknown_lints, async_fn_in_trait)]
+#![allow(async_fn_in_trait)]
 #![cfg_attr(not(any(test, feature = "std")), no_std)]
 #![allow(clippy::module_name_repetitions)]
 #![allow(clippy::missing_errors_doc)]