[vectorIntrinsics] RFR: Remove `byte[]` and `ByteBuffer` access methods.

[Jie Fu]

On Thu, 7 Apr 2022 22:38:49 GMT, Paul Sandoz <psandoz at openjdk.org> wrote:

> Removes `byte[]` and `ByteBuffer` vector access methods.
> 
> Fixes performance issue with the fallback implementation of `MemorySegment` accessors (the `ValueLayout` passed to the scalar accessors needs to be constant).

Hi @PaulSandoz ,

Is there any perf number before and after this patch?
Also why there is no JBS for this PR?

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PR: https://git.openjdk.java.net/panama-vector/pull/190