Reland "Reland "Privacy Sandbox: Cleanup the old consent and notice prompt values""

This is a reland of commit cf016a7c425c930f8695f284065cf8dc6fa7af10

Original change's description:
> Reland "Privacy Sandbox: Cleanup the old consent and notice prompt values"
>
> This is a reland of commit 5de41f160556c5405555af0c2f95741b8b4aab47
> Waiting for the document to exist in the WebUI should have fixed the
> test flakiness.
>
> Original change's description:
> > Privacy Sandbox: Cleanup the old consent and notice prompt values
> >
> > Since PrivacySandboxV4 is now enabled by default, this CL deprecates
> > and cleanups the old consent and notice prompt usage.
> >
> > Bug: 1449833
> > Change-Id: Ibcaf594a02e558ac32b6a9b1c48886e861667f49
> > Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5079469
> > Reviewed-by: Theodore Olsauskas-Warren <sauski@google.com>
> > Reviewed-by: Dana Fried <dfried@chromium.org>
> > Commit-Queue: Nicola Tommasi <tommasin@chromium.org>
> > Reviewed-by: Greg Thompson <grt@chromium.org>
> > Cr-Commit-Position: refs/heads/main@{#1235624}
>
> Bug: 1449833
> Change-Id: I75d0a543db7bb583c756f07c9125c48bee2fbe52
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5116178
> Reviewed-by: Theodore Olsauskas-Warren <sauski@google.com>
> Reviewed-by: Greg Thompson <grt@chromium.org>
> Commit-Queue: Nicola Tommasi <tommasin@chromium.org>
> Reviewed-by: Dana Fried <dfried@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#1236904}

Bug: 1449833
Change-Id: I3d1af373490eca2c57ae5b93d52ea14a1ec79c43
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5116685
Commit-Queue: Nicola Tommasi <tommasin@chromium.org>
Reviewed-by: Dana Fried <dfried@chromium.org>
Reviewed-by: Greg Thompson <grt@chromium.org>
Reviewed-by: Theodore Olsauskas-Warren <sauski@google.com>
Cr-Commit-Position: refs/heads/main@{#1237985}