Get rid of directx/ffeedback

src/main/directx/ffeedback.cpp

-#include "ffeedback.hpp"
-
-//-----------------------------------------------------------------------------
-// Dummy Functions For Non-Windows Builds
-//-----------------------------------------------------------------------------
-namespace forcefeedback
-{
-    bool init(int a, int b, int c) { return false; } // Did not initialize
-    void close()                   {}
-    int  set(int x, int f)         { return 0; }
-    bool is_supported()            { return false; } // Not supported
-};

src/main/directx/ffeedback.hpp

-/***************************************************************************
-    Copyright Chris White.
-    See license.txt for more details.
-***************************************************************************/
-
-#pragma once
-
-//-----------------------------------------------------------------------------
-// Function prototypes 
-//-----------------------------------------------------------------------------
-namespace forcefeedback
-{
-    extern bool init(int max_force, int min_force, int force_duration);
-    extern void close();
-    extern int  set(int xdirection, int force);
-    extern bool is_supported();
-};

src/main/engine/ooutputs.cpp

@@ -27,7 +27,7 @@
 #include "engine/ohud.hpp"
 #include "engine/oinputs.hpp"
 #include "engine/ooutputs.hpp"
-#include "directx/ffeedback.hpp"
+#include "libretro/ffeedback.hpp"
 
 OOutputs::OOutputs(void)
 {