Revert "initialize QCA_SUFFIX cache with the possibly previously set SUFFIX"
Revert "initialize QCA_SUFFIX cache with the possibly previously set SUFFIX"

I don't agree with this changes see https://git.reviewboard.kde.org/r/121168/
for details.

This reverts commit 3e3533b2753c8e47f0d22b77b564a0a6332cd5b8.

JoshuaKolden/qca,JoshuaKolden/qca,KDE/qca,JoshuaKolden/qca,KDE/qca,KDE/qca,JoshuaKolden/qca,KDE/qca