some little optimizations and some cleaning.

now lighting should be fully functional again in SM 2.0 cards

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6794 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/VideoCommon/Src/VideoConfig.h

@@ -162,6 +162,7 @@ struct VideoConfig
 		bool bAllowSignedBytes; // D3D9 doesn't support signed bytes (?)
 		bool bSupportsDualSourceBlend; // only supported by D3D11 and OpenGL
 		bool bSupportsFormatReinterpretation;
+		bool bSupportsPixelLighting;
 	} backend_info;
 };