D3D: minor vs constant-setting optimization, remove a stupid memcpy that doesn't do anything, don't see much benefit though :/ At least the PIX logs will be cleaner.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4301 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Plugins/Plugin_VideoDX9/Src/NativeVertexFormat.cpp

@@ -162,7 +162,7 @@ void D3DVertexFormat::Initialize(const PortableVertexDeclaration &_vtx_decl)
 void D3DVertexFormat::SetupVertexPointers() const
 {
 	if (d3d_decl)
-		D3D::dev->SetVertexDeclaration(d3d_decl);
+		D3D::SetVertexDeclaration(d3d_decl);
 	else
 		ERROR_LOG(VIDEO, "invalid d3d decl");
 }