Remove 1.23.0 release notes entry on const_fn

It doesn’t change anything for stable users in practice. See discussion in https://github.com/rust-lang/rust/pull/46148
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Simon Sapin 2017-11-21 12:43:24 +01:00 committed by GitHub
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@ -5,10 +5,6 @@ Language
--------
- [`non_snake_case` lint now allows extern no-mangle functions][44966]
- [Now accepts underscores in unicode escapes][43716]
- [`#![feature(const_fn)]` is now no longer required for
calling const functions.][43017] It's still required for creating
constant functions, and const functions in the standard libraries
now have individual feature gates.
- [`T op= &T` now works for numeric types.][44287] eg. `let mut x = 2; x += &8;`
- [types that impl `Drop` are now allowed in `const` and `static` types][44456]