revert (presumably unintentional) change from r59562, which caused auto-scroll sample selection to be broken for last 2.5 years

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69516 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/scroll/scroll.cpp

@@ -1314,7 +1314,7 @@ void MyAutoScrollingWindow::OnMouseMove(wxMouseEvent& event)
         // set the new cursor position
         m_cursor = DeviceCoordsToGraphicalChars(event.GetPosition());
         // draw/erase selection
-        // MyRefresh();
+        MyRefresh();
         // capture mouse to activate auto-scrolling
         if (!HasCapture()) {
             CaptureMouse();