Fix thin_archive for icu

Remove use of check_thin_archive variable which only
seems to be used for controlling icu_disable_thin_archive.

Use icu_disable_thin_archive directly instead of going through
check_thin_archive.

This fixes a problem in Chrome OS where libicuuc-chrome.a
is exported a thin archive instead of regular archive despite
icu_disable_thin_archive. being set.

Bug:b:229619725
Change-Id: Ifeba65cbe853a6bcb986ec4a76a82ad517dea954
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/deps/icu/+/3590078
Reviewed-by: Frank Tang <ftang@chromium.org>
1 file changed