[cmake] remove ENABLE_KWIN compatible option since it was not in the last release
[cmake] remove ENABLE_KWIN compatible option since it was not in the last release

gnufabio/qtcurve,KDE/qtcurve,gnufabio/qtcurve,KDE/qtcurve,KDE/qtcurve,KDE/qtcurve,gnufabio/qtcurve,gnufabio/qtcurve