This reverts commit 1a225459.

Reason for revert: Makes GC stress unhappy: https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Linux%20-%20gc%20stress/18325 and blocks the roll

Original change's description:
> Implement ResolveLocale in C++.
> 
> Bug: v8:8065, v8:5751
> Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
> Change-Id: Id9dc16455d63b7c436126c21758d64fae0ec8de9
> Reviewed-on: https://chromium-review.googlesource.com/1211402
> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
> Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#55925}

TBR=bstell@chromium.org,gsathya@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: v8:8065, v8:5751
Change-Id: I4d71adb31ffd5ab0d2ae42c0255d0a05edbaad29
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/1226646Reviewed-by: Michael Hablich <hablich@chromium.org>
Commit-Queue: Michael Hablich <hablich@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55932}