Revert "Create OptimizationGuideGlobalState for iOS"

This reverts commit ade55f71d51e90dc058b93e2d99a9425c3f2ba1f.

Reason for revert: Compilation issue. Multiple bots red: https://ci.chromium.org/ui/p/chrome/builders/luci.chrome.ci/simulator-builder-arm64

Bug: 434973257
Original change's description:
> Create OptimizationGuideGlobalState for iOS
>
> Bug: 434973257
> Change-Id: I955705d5a3c4797160c4dcb050368c4e52004dfa
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6806225
> Commit-Queue: Raj T <rajendrant@chromium.org>
> Reviewed-by: David Roger <droger@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#1505160}

Bug: 434973257
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Change-Id: Ib2f5d14ac63fbb3fa0e07d58c902836ddf17ca96
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6874369
Owners-Override: Benjamin Williams <bwwilliams@google.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Benjamin Williams <bwwilliams@google.com>
Auto-Submit: Benjamin Williams <bwwilliams@google.com>
Cr-Commit-Position: refs/heads/main@{#1505245}