fixed compilation with wxUSE_WXDIB==0 (bug 1667819)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@44746 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/cursor.cpp

@@ -215,9 +215,7 @@ wxCursor::wxCursor(const wxImage& image)
         wxLogWarning(_("Failed to create cursor."));
         return;
     }
-#else
-    HCURSOR hcursor = 0;
-#endif
+#endif // wxUSE_WXDIB
 
     m_refData = new wxCursorRefData(hcursor, true /* delete it later */);
 }