RFR: 8342715: x86 unused orw instruction encoding could be removed

[Vladimir Kozlov]

On Mon, 21 Oct 2024 17:49:36 GMT, hanklo6 <duke at openjdk.org> wrote:

> x86 orw(Register, Register) encoding is missing 0x66 prefix. This instruction is unused and can be removed. It was initially removed in #20901 but was re-added in #20698

Trivial.

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Marked as reviewed by kvn (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/21620#pullrequestreview-2383173563