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- This feature was never launched and the flag expired in M89.
Extending expiry so that this flag can be re-used for a
new unified cellular setup UI.
- Updated team owner to cros-connectivity

Bug: 1093185
Change-Id: I6edea8d789edf3d56c3142e2884ef11406ab4ef6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2638358Reviewed-by: Avi Drissman <avi@chromium.org>
Commit-Queue: Nnamdi Theodore Johnson-kanu <tjohnsonkanu@google.com>
Cr-Commit-Position: refs/heads/master@{#844946}