[Direct2D1] Fix #define for non-Win8 metro compilation
[Direct2D1] Fix #define for non-Win8 metro compilation

weltkante/SharpDX,Ixonos-USA/SharpDX,TechPriest/SharpDX,waltdestler/SharpDX,dazerdude/SharpDX,TigerKO/SharpDX,Ixonos-USA/SharpDX,fmarrabal/SharpDX,RobyDX/SharpDX,manu-silicon/SharpDX,andrewst/SharpDX,jwollen/SharpDX,mrvux/SharpDX,manu-silicon/SharpDX,weltkante/SharpDX,wyrover/SharpDX,sharpdx/SharpDX,PavelBrokhman/SharpDX,fmarrabal/SharpDX,PavelBrokhman/SharpDX,RobyDX/SharpDX,dazerdude/SharpDX,dazerdude/SharpDX,VirusFree/SharpDX,RobyDX/SharpDX,sharpdx/SharpDX,TechPriest/SharpDX,TigerKO/SharpDX,andrewst/SharpDX,davidlee80/SharpDX-1,dazerdude/SharpDX,shoelzer/SharpDX,fmarrabal/SharpDX,RobyDX/SharpDX,weltkante/SharpDX,VirusFree/SharpDX,TigerKO/SharpDX,weltkante/SharpDX,Ixonos-USA/SharpDX,TechPriest/SharpDX,fmarrabal/SharpDX,mrvux/SharpDX,shoelzer/SharpDX,davidlee80/SharpDX-1,manu-silicon/SharpDX,mrvux/SharpDX,davidlee80/SharpDX-1,Ixonos-USA/SharpDX,davidlee80/SharpDX-1,wyrover/SharpDX,PavelBrokhman/SharpDX,TigerKO/SharpDX,VirusFree/SharpDX,shoelzer/SharpDX,waltdestler/SharpDX,TechPriest/SharpDX,VirusFree/SharpDX,jwollen/SharpDX,waltdestler/SharpDX,waltdestler/SharpDX,jwollen/SharpDX,jwollen/SharpDX,shoelzer/SharpDX,PavelBrokhman/SharpDX,sharpdx/SharpDX,wyrover/SharpDX,shoelzer/SharpDX,wyrover/SharpDX,andrewst/SharpDX,manu-silicon/SharpDX