No changes, just remove redundant GetControllerSize() definitions.

For some reasons wxBookCtrlBase::GetControllerSize() was redefined in several
derived classes even though it did exactly the same thing in all of them.

Leave only the base class version and remove the other ones.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@63630 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/toolbook.h

@@ -101,9 +101,6 @@ public:
 protected:
     virtual wxWindow *DoRemovePage(size_t page);
 
-    // get the size which the list control should have
-    virtual wxSize GetControllerSize() const;
-
     // event handlers
     void OnToolSelected(wxCommandEvent& event);
     void OnSize(wxSizeEvent& event);