[icu] Track deleted blocks in the Fuchsia copy.

This re-adds and comments out deleted blocks in the Fuchsia copy of
ICU. The purpose of tracking deleted blocks is to simplify the
upstream merging process.

Bug: 56356
Change-Id: I06e6e3897993ef0d77a32ec88293328df5204bf5
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/icu/+/408802
Reviewed-by: Filip Filmar <fmil@google.com>
1 file changed