Revert "[basic-win32] Increase performance of Uniscribe code"
Revert "[basic-win32] Increase performance of Uniscribe code"

Unfortunately this change breaks complex script shaping.

This reverts commit ea608c0bd7721d3019bed7ef2472289b1ea6fa53.

OpenInkpot-archive/iplinux-pango1.0,kari-lentz/alpha-pango,OpenInkpot-archive/iplinux-pango1.0,danny-ku/pango,Distrotech/pango,kari-lentz/alpha-pango,OpenInkpot-archive/iplinux-pango1.0,Distrotech/pango,kari-lentz/alpha-pango,Distrotech/pango,danny-ku/pango,kari-lentz/alpha-pango,danny-ku/pango