Reland "[oobe] Switch wizard controller tests to USD"

This reverts commit 9c632cbd7eb1c8efccfe60c727c5aa67024ff7bc.

Reason for revert: Found fix (and will run linux-chromeos-chrome
for realz)

Original change's description:
> Revert "[oobe] Switch wizard controller tests to USD"
>
> This reverts commit 2efd39f4334c59a8e80903e2166e73d7c994368f.
>
> Reason for revert:
>
> Break tests on `linux-chromeos-chrome`:
> WizardControllerDemoSetupTest.DemoSetupCanceled
> WizardControllerFlowTest.ControlFlowSkipUpdateEnroll
>
> First failed build: https://ci.chromium.org/ui/p/chrome/builders/ci/linux-chromeos-chrome/49246/overview
>
> Original change's description:
> > [oobe] Switch wizard controller tests to USD
> >
> > Since M131, Unified Enrollment State Determination (USD) replaces
> > legacy state determination for ZTE and FRE. The code for legacy
> > state determination can therefore be removed.
> >
> > This CL is moving the enrollment-related tests from legacy enrollment
> > state determination to Unified State Determination.
> >
> > Bug: 383047722
> > Change-Id: I48dc355f44f7436814ec6a3f7cd60bb6c55a92d6
> > Tests: Refactored tests
> > Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6304982
> > Commit-Queue: Roland Bock <rbock@google.com>
> > Reviewed-by: Denis Kuznetsov <antrim@chromium.org>
> > Cr-Commit-Position: refs/heads/main@{#1425654}
>
> Bug: 383047722
> Change-Id: I926dc5af62cff4fe5b882450bc2fac79e8f6c310
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6309895
> Auto-Submit: Xiyuan Xia <xiyuan@chromium.org>
> Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
> Commit-Queue: Denis Kuznetsov <antrim@chromium.org>
> Reviewed-by: Denis Kuznetsov <antrim@chromium.org>
> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
> Cr-Commit-Position: refs/heads/main@{#1425753}

Cq-Include-Trybots: luci.chrome.try:linux-chromeos-chrome
Cq-Include-Trybots: luci.chromium.try:linux-chromeos-rel

Bug: 383047722
Change-Id: I11fa566c21766a051d9f6c74aa18971894ff5ef5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6308889
Reviewed-by: Denis Kuznetsov <antrim@chromium.org>
Commit-Queue: Roland Bock <rbock@google.com>
Cr-Commit-Position: refs/heads/main@{#1426266}