[dxgi] Fix behavior of GetWindowAssociation

src/dxgi/dxgi_factory.cpp

@@ -407,7 +407,8 @@ namespace dxvk {
     if (pWindowHandle == nullptr)
       return DXGI_ERROR_INVALID_CALL;
     
-    *pWindowHandle = m_associatedWindow;
+    // Wine tests show that this is always null for whatever reason
+    *pWindowHandle = nullptr;
     return S_OK;
   }
   
@@ -422,7 +423,6 @@ namespace dxvk {
   
   HRESULT STDMETHODCALLTYPE DxgiFactory::MakeWindowAssociation(HWND WindowHandle, UINT Flags) {
     Logger::warn("DXGI: MakeWindowAssociation: Ignoring flags");
-    m_associatedWindow = WindowHandle;
     return S_OK;
   }
   

src/dxgi/dxgi_factory.h

@@ -182,9 +182,7 @@ namespace dxvk {
     DxgiMonitorInfo  m_monitorInfo;
     UINT             m_flags;
     BOOL             m_monitorFallback;
-    
-    HWND m_associatedWindow = nullptr;
-    
+      
   };
   
 }