Don't open kdeglobals explicitly in font/hint settings.
Review Request #127780 - Created April 28, 2016 and submitted
The app config (KSharedConfig::openConfig()) is a mix of the app's settings and kdeglobals.
Loading kdeglobals directly not only is a waste of resources, but breaks
one of the key features of KConfig where a user can override global settings
on a per app basis.
What's worse is that KColorScheme when used directly does use the app config, so some apps give an inconsistent mix of results if you try and override settings.