Change the screenshots rescale function to always work according to the A/R setting, and not just on native res: fixes 16/9 wii games.

remove IsATIDrawBuffer(), this might have been fixed in the drivers since some years already ?

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3359 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Plugins/Plugin_VideoOGL/Src/Render.h

@@ -54,7 +54,6 @@ public:
 
 	static void SwapBuffers();
 
-	static bool IsUsingATIDrawBuffers();
 	static bool IsBlack();
     static void SetColorMask();
 	static void SetBlendMode(bool forceUpdate);