Eliminate some redundant executes

- excessive calls to DrawView::execute were
  slowing data entry in PropertyEditor.

src/Mod/TechDraw/Gui/ViewProviderViewPart.cpp

@@ -95,13 +95,6 @@ ViewProviderViewPart::~ViewProviderViewPart()
 
 void ViewProviderViewPart::updateData(const App::Property* prop)
 {
-    if (prop == &(getViewObject()->Scale) ) {   //shouldn't Scale cause DVP::execute & request paint??
-        QGIView* qgiv = getQView();
-        if (qgiv) {
-            qgiv->updateView(true);
-        }
-    }
-
     ViewProviderDrawingView::updateData(prop);
 }