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/Plugins/Plugin_VideoOGL/Src/main.cpp

@@ -101,11 +101,6 @@ int GLScissorX, GLScissorY, GLScissorW, GLScissorH;
 static volatile u32 s_doStateRequested = FALSE;
 #endif
 
-bool IsD3D()
-{
-	return false;
-}
-
 // This is used for the functions right below here which use wxwidgets
 #if defined(HAVE_WX) && HAVE_WX
 #ifdef _WIN32