Rollup merge of rust-lang#100604 - dtolnay:okorerr, r=m-ou-se

Remove unstable Result::into_ok_or_err

Pending FCP: rust-lang#82223 (comment)

```@rustbot``` label +waiting-on-fcp

Author: JohnTitor

Diff for: patches/0024-core-Disable-portable-simd-test.patch

@@ -14,7 +14,6 @@ index 06c7be0..359e2e7 100644
 @@ -75,7 +75,6 @@
  #![feature(never_type)]
  #![feature(unwrap_infallible)]
- #![feature(result_into_ok_or_err)]
 -#![feature(portable_simd)]
  #![feature(ptr_metadata)]
  #![feature(once_cell)]