fixup! chore: remove unnecessarily allow'd lint rules under REPO_MSRV

Author: ErichDonGubler

examples/src/hello/mod.rs

@@ -1,9 +1,5 @@
 /// This example shows how to describe the adapter in use.
 async fn run() {
-    #[cfg_attr(
-        all(target_arch = "wasm32", not(target_os = "emscripten")),
-        expect(unused_variables)
-    )]
     let adapter = {
         let instance = wgpu::Instance::default();
         #[cfg(not(target_arch = "wasm32"))]