DX11:

- Speed up MSAA by using custom resolve shaders instead of ID3D11DeviceContext::ResolveSubresource().
- Fix EFB access when MSAA is enabled.
- Implement the "force linear filtering" option.
- Compile shaders using shader model 4.1 or 5.0 if available.
- Some minor cleanups.

Who cares about DX9 and OGL anyway :P

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6481 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/VideoCommon/Src/VideoCommon.h

@@ -146,8 +146,6 @@ struct TargetRectangle : public MathUtil::Rectangle<int>
 
 #define LOG_VTX()
 
-bool IsD3D();
-
 typedef enum
 {
 	API_OPENGL,