Revert "[compiler] Cache StateValue processing in InstructionSelector."

This reverts commit 812eb264569475845d15ebae4cfeca477d8c72e1.

Reason for revert: clusterfuzz crashes

Original change's description:
> [compiler] Cache StateValue processing in InstructionSelector.
>
> Processing StateValues into operands is one of the most costly
> parts of instruction selection. As it happens, StateValues are
> shared by many nodes, and so we are unecessarily reprocessing
> the same StateValues multiple times. This CL introduces caching
> for the processed StateValues enabling very fast emitting of
> operands for subsiquent instructions with the same StateValue.
> The hitrate for the cache is higher than 90% on most optimizations.
>
> BUG=v8:9684
>
> Change-Id: I45db86dcbf22ab972b892f11c608b825aeb3ecf3
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2749634
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73342}

Bug: v8:9684
Change-Id: I7d8121f91a0a7ed764add64f12f3954635921cfa
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2756208
Auto-Submit: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#73361}
(cherry picked from commit 5ddbc33b80f5d1b9cd211d1ad788352200ebb85e)
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2759521
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>

• src/compiler/backend/instruction-selector.cc[diff]
• src/compiler/backend/instruction-selector.h[diff]
• src/compiler/backend/instruction.h[diff]

    fetch v8

    git pull origin
    gclient sync

    fetch = +refs/branch-heads/*:refs/remotes/branch-heads/*
    fetch = +refs/tags/*:refs/tags/*