kcm_fonts: Don't touch any Xft options when anti-aliasing is set to system settings
Review Request #126093 - Created Nov. 17, 2015 and submitted
When anti-aliasing is set to system settings, fonts kcm still saves XftHintStyle and XftSubPixel which gets applied by krdb, resulting in overwriting any externally-set values (eg. from ~/.Xresources).
No Xft* is written to kdeglobal if anti-aliasing == system settings + it still gets correctly saved when anti-aliasing is set.