ddraw: Make ddraw_reset_enum_callback() and ddraw_surface_destroy() static.

dlls/ddraw/ddraw.c

@@ -2649,7 +2649,7 @@ CreateAdditionalSurfaces(IDirectDrawImpl *This,
     return DD_OK;
 }
 
-HRESULT CDECL ddraw_reset_enum_callback(struct wined3d_resource *resource)
+static HRESULT CDECL ddraw_reset_enum_callback(struct wined3d_resource *resource)
 {
     return DD_OK;
 }

dlls/ddraw/ddraw_private.h

@@ -200,7 +200,6 @@ struct IDirectDrawSurfaceImpl
 };
 
 HRESULT ddraw_surface_create_texture(IDirectDrawSurfaceImpl *surface) DECLSPEC_HIDDEN;
-void ddraw_surface_destroy(IDirectDrawSurfaceImpl *surface) DECLSPEC_HIDDEN;
 HRESULT ddraw_surface_init(IDirectDrawSurfaceImpl *surface, IDirectDrawImpl *ddraw,
         DDSURFACEDESC2 *desc, UINT mip_level, UINT version) DECLSPEC_HIDDEN;
 ULONG ddraw_surface_release_iface(IDirectDrawSurfaceImpl *This) DECLSPEC_HIDDEN;

dlls/ddraw/surface.c

@@ -429,7 +429,7 @@ static ULONG WINAPI d3d_texture1_AddRef(IDirect3DTexture *iface)
  *  This: Surface to free
  *
  *****************************************************************************/
-void ddraw_surface_destroy(IDirectDrawSurfaceImpl *This)
+static void ddraw_surface_destroy(IDirectDrawSurfaceImpl *This)
 {
     TRACE("surface %p.\n", This);