[sfnt] Update paint format values to support non-variable paints.

* freetype.h (FT_PaintFormat): Update paint format identifiers after
a specification change.  The specification was updated to have
sibling formats, variable and non-variable variants for each.
Reflect that here.

* sfnt/ttcolr.c (read_paint): Remove parsing of variable indices as
the non-variable formats no longer have them.
3 files changed