Revert "Hide temporarily 4 ICU fields to avoid merge conflicts in downstream branches"

This reverts commit 7732eff7f3f078b7642f5fdc26bdb01c5666b6ea.

Reason for revert: Expose back temporarily hidden fields

Test: ./tools/srcgen/generate_android_icu4j.sh
Change-Id: Idb323a91565d1dc612d4f16439ce84eb18a2dbd7
3 files changed