[Backport generator] I believe it is not necessary to create a shell for QPagedPaintDevice

(cherry picked from commit MeVisLab/pythonqt@c421c83)

Author: usiems

generator/typesystem_gui.xml

@@ -3089,7 +3089,7 @@ PyObject* constScanLine(QImage* image, int line) {
   <object-type name="QGuiApplication">
       <modify-function signature="QGuiApplication(int &amp;, char  **, int)" remove="all"/>
   </object-type>
-  <interface-type name="QPagedPaintDevice">
+  <interface-type name="QPagedPaintDevice" create-shell="no">
     <modify-function signature="devicePageLayout()const" remove="all"/>
   </interface-type>