remove stdlib functions stabilized in 1.59.0

Author: pietroalbini

posts/2022-01-13-Rust-1.58.0.md

@@ -133,7 +133,6 @@ The following methods and trait implementations were stabilized.
 - [`Option::unwrap_unchecked`]
 - [`Result::unwrap_unchecked`]
 - [`Result::unwrap_err_unchecked`]
-- [`NonZero{unsigned}::is_power_of_two`]
 
 The following previously stable functions are now `const`.
 
@@ -145,18 +144,13 @@ The following previously stable functions are now `const`.
 - [`Duration::checked_mul`]
 - [`Duration::saturating_mul`]
 - [`Duration::checked_div`]
-- [`MaybeUninit::as_ptr`]
-- [`MaybeUninit::as_mut_ptr`]
-- [`MaybeUninit::assume_init`]
-- [`MaybeUninit::assume_init_ref`]
 
 [`Metadata::is_symlink`]: https://doc.rust-lang.org/stable/std/fs/struct.Metadata.html#method.is_symlink
 [`Path::is_symlink`]: https://doc.rust-lang.org/stable/std/path/struct.Path.html#method.is_symlink
 [`{integer}::saturating_div`]: https://doc.rust-lang.org/stable/std/primitive.i8.html#method.saturating_div
 [`Option::unwrap_unchecked`]: https://doc.rust-lang.org/stable/std/option/enum.Option.html#method.unwrap_unchecked
 [`Result::unwrap_unchecked`]: https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.unwrap_unchecked
 [`Result::unwrap_err_unchecked`]: https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.unwrap_err_unchecked
-[`NonZero{unsigned}::is_power_of_two`]: https://doc.rust-lang.org/stable/std/num/struct.NonZeroU8.html#method.is_power_of_two
 [`Duration::new`]: https://doc.rust-lang.org/stable/std/time/struct.Duration.html#method.new
 [`Duration::checked_add`]: https://doc.rust-lang.org/stable/std/time/struct.Duration.html#method.checked_add
 [`Duration::saturating_add`]: https://doc.rust-lang.org/stable/std/time/struct.Duration.html#method.saturating_add
@@ -165,10 +159,6 @@ The following previously stable functions are now `const`.
 [`Duration::checked_mul`]: https://doc.rust-lang.org/stable/std/time/struct.Duration.html#method.checked_mul
 [`Duration::saturating_mul`]: https://doc.rust-lang.org/stable/std/time/struct.Duration.html#method.saturating_mul
 [`Duration::checked_div`]: https://doc.rust-lang.org/stable/std/time/struct.Duration.html#method.checked_div
-[`MaybeUninit::as_ptr`]: https://doc.rust-lang.org/stable/std/mem/union.MaybeUninit.html#method.as_ptr
-[`MaybeUninit::as_mut_ptr`]: https://doc.rust-lang.org/stable/std/mem/union.MaybeUninit.html#method.as_mut_ptr
-[`MaybeUninit::assume_init`]: https://doc.rust-lang.org/stable/std/mem/union.MaybeUninit.html#method.assume_init
-[`MaybeUninit::assume_init_ref`]: https://doc.rust-lang.org/stable/std/mem/union.MaybeUninit.html#method.assume_init_ref
 
 ### Other changes