coretext: always use lazy loading
coretext: always use lazy loading

We already decided that eager loading is too slow. No need to keep
multiple code paths around.

MrSmile/libass,stps/libass,astiob/libass,grigorig/libass,mwgoldsmith/libass,sanyaade-g2g-repos/libass,sanyaade-g2g-repos/libass,xbmc/libass,sanyaade-g2g-repos/libass,Akemi/libass,Akemi/libass,stps/libass,ShiftMediaProject/libass,grigorig/libass,mwgoldsmith/libass,torque/libass,Akemi/libass,libass/libass,torque/libass,xbmc/libass,mwgoldsmith/libass,ShiftMediaProject/libass,MrSmile/libass,astiob/libass,stps/libass,torque/libass,libass/libass