This reverts commit 7b744e3a.

Reason for revert: Break V8 Linux64 ASAN

Original change's description:
> [Intl] Replace uloc_(to|for)Language w/ Locale API
> 
> Bug: v8:8468
> Change-Id: Id2f8d165e5f29f429821b44def2512fe760c0a51
> Reviewed-on: https://chromium-review.googlesource.com/c/1377989
> Reviewed-by: Jungshik Shin <jshin@chromium.org>
> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
> Commit-Queue: Frank Tang <ftang@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#58260}

TBR=jshin@chromium.org,gsathya@chromium.org,ftang@chromium.org

Change-Id: I5d6069245f468f7ca5d99f2973bd53524e2d4782
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:8468
Reviewed-on: https://chromium-review.googlesource.com/c/1378657Reviewed-by: Frank Tang <ftang@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58261}