Reverse wpo.patch and remove it

It is unclear what this patch is for, as compile seems to succeed
without it. Additionally it is causing UB by removing the alignas(16)
annotation that is upstream.

Bug: 339286987
Change-Id: I3e562b5ce240b1b5cc6f661cc39d96354629ea73
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/deps/icu/+/5523976
Reviewed-by: David Yeung <dayeung@chromium.org>
5 files changed