[USE] Remove non-canonical decompositions We have had added this in Indic shaper to assist shaping these scripts. In Universal Shaping Engine however, it is up to font designer to decompose them. Hence moving them from Indic shaper to USE was wrong. Fixup for f6ba63b2e8eb577385f70758efdd3b8408c8a9cb Part of fixing https://github.com/behdad/harfbuzz/issues/387