Update simd.rs to Rust 1.58#414

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afetisov:simd-update

Commits on May 21, 2022

remove usage of `#![feature("stdsimd")]`, since all x86 and x86_64 simd functions are now stable
afetisov
committed
bail on occurrence of `_mm_setzero_si64` since it was removed from stdlib
afetisov
committed
update the list of missing simd functions to rust 1.58
afetisov
committed