Revert "[ios] Adds a flag to disable the First Run Experience."

This reverts commit 2e77e82b2ae3db93be0af6837cebe0b9c530c6a6.

Reason for revert: Startup crash

Original change's description:
> [ios] Adds a flag to disable the First Run Experience.
>
> This flag will be used to disable the FRE when launching the app under test.
>
> Bug: 393401183
> Change-Id: I378dafe8c4d4ad857088826bdeadca732023e50a
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6219842
> Reviewed-by: Huiting Yu <huitingyu@google.com>
> Commit-Queue: Rohit Rao <rohitrao@chromium.org>
> Reviewed-by: Rohit Rao <rohitrao@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#1414354}

Bug: 393401183
Change-Id: Ibce49ffc43eb343b11e81a87e9a45365043192c4
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6219356
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Auto-Submit: Rohit Rao <rohitrao@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1414579}
NOKEYCHECK=True
GitOrigin-RevId: b6b937681c9dc7a4871af3617755706b6540ded5
5 files changed
tree: 5744d3e912724117951c24f11918f1ce429edc1f
  1. build/
  2. chrome/
  3. components/
  4. google_internal/
  5. intents/
  6. net/
  7. public/
  8. testing/
  9. third_party/
  10. tools/
  11. web/
  12. web_view/
  13. .swift-format
  14. BUILD.gn
  15. COMMON_METADATA
  16. DEPS
  17. DIR_METADATA
  18. features.gni
  19. OWNERS
  20. PRESUBMIT.py
  21. PRESUBMIT_test.py
  22. README.md
README.md

This directory holds code related to Chrome for iOS. See this document for a description of the structure underneath this directory.