remove undesired virtual keyword from ViewProviderPythonFeatureImp

src/Gui/ViewProviderPythonFeature.cpp

@@ -1019,9 +1019,6 @@ bool ViewProviderPythonFeatureImp::isShow() const
                 Py::Boolean ok(method.apply(args));
                 return static_cast<bool>(ok) ? true : false;
             }
-            else {
-                return false;
-            }
         }
     }
     catch (Py::Exception&) {

src/Gui/ViewProviderPythonFeature.h

@@ -73,7 +73,7 @@ public:
     /** @name Display methods */
     //@{
     /// Returns true if the icon must always appear enabled in the tree view
-    virtual bool isShow() const;
+    bool isShow() const;
     /// get the default display mode
     const char* getDefaultDisplayMode() const;
     /// returns a list of all possible modes