remove ref in ArrayElemAccessor

The ref cause clippy warning: this expression creates a reference which
is immediately dereferenced by the compiler

Author: duskmoon314

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/).
 
 ## [Unreleased]
 
+- Remove needless reference in `ArrayElemAccessor`
+
 ## [v0.31.0] - 2023-11-24
 
 - Use methods to access any register or cluster

src/generate/peripheral/accessor.rs

@@ -204,7 +204,7 @@ impl ToTokens for ArrayElemAccessor {
             #[doc = #doc]
             #[inline(always)]
             pub const fn #name(&self) -> &#ty {
-                &self.#basename(#i)
+                self.#basename(#i)
             }
         }
         .to_tokens(tokens);