Drops unused Hans-Hant ICU transliteration data.

Summary of data size decrease:
 android/icudtl.dat   6610128 ->  6573024 bytes
 common/icudtb.dat   10166816 -> 10129712 bytes
 common/icudtl.dat   10166816 -> 10129712 bytes

Patch by riesa@chromium.org

BUG=684609
R=jshin@chromium.org

Review-Url: https://codereview.chromium.org/2747173004 .
3 files changed