DOCX drawingML shape import: no need to add TextFrames to the drawpage

As (not) done for the VML import in Drawing::createAndInsertXShape()
already.

Change-Id: Ib4eac941a46e09df6b5363e8c7eeacc2e6dbac6d

oox/source/drawingml/shape.cxx

@@ -508,7 +508,8 @@ Reference< XShape > Shape::createAndInsert(
             if( xNamed.is() )
                 xNamed->setName( msName );
         }
-        rxShapes->add( mxShape );
+        if (aServiceName != "com.sun.star.text.TextFrame")
+            rxShapes->add( mxShape );
 
         if ( mbHidden || mbHiddenMasterShape )
         {