dxgi: Remove superfluous pointer casts.
diff --git a/dlls/dxgi/dxgi_main.c b/dlls/dxgi/dxgi_main.c
index b72c04a..06086f7 100644
--- a/dlls/dxgi/dxgi_main.c
+++ b/dlls/dxgi/dxgi_main.c
@@ -315,7 +315,7 @@
         goto fail;
     }
 
-    *device = (IUnknown *)dxgi_device;
+    *device = dxgi_device;
 
     return hr;