These functions are not really useful as converting between wxFont and
LOGFONT can be done trivially by passing via wxNativeFontInfo and, in
fact, wxCreateFontFromLogFont() managed to do the conversion wrongly by
forgetting to update wxNativeFontInfo::pointSize member when changing
wxNativeFontInfo::lf.
This fixes one unit test failure after the latest changes, although not
yet the other one, see the upcoming commit for this.
72a225924d