call RemoveChild() in ~wxWindowBase instead of doing it in each ~wxWindow for each port

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@23596 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/mac/carbon/window.cpp

@@ -174,15 +174,8 @@ wxWindowMac::~wxWindowMac()
         gFocusWindow = NULL ;
     }
 
-	// CS: copied from MSW :
-    // VS: destroy children first and _then_ detach *this from its parent.
-    //     If we'd do it the other way around, children wouldn't be able
-    //     find their parent frame (see above).
     DestroyChildren();
 
-    if ( m_parent )
-        m_parent->RemoveChild(this);
-
     // delete our drop target if we've got one
 #if wxUSE_DRAG_AND_DROP
     if ( m_dropTarget != NULL )