Drop manual_checked_div changelog edit

Author: amerikrainian

CHANGELOG.md

@@ -8,10 +8,6 @@ document.
 
 [e9b7045...master](https://github.com/rust-lang/rust-clippy/compare/e9b7045...master)
 
-### New Lints
-
-* Added [`manual_checked_div`] to `nursery`
-
 ## Rust 1.91
 
 Current stable, released 2025-10-30
@@ -6534,7 +6530,6 @@ Released 2018-09-13
 [`manual_async_fn`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_async_fn
 [`manual_bits`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_bits
 [`manual_c_str_literals`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_c_str_literals
-[`manual_checked_div`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_checked_div
 [`manual_clamp`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_clamp
 [`manual_contains`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_contains
 [`manual_dangling_ptr`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_dangling_ptr