Disconnect all GTK signals referencing a wx object which is being destructed

or which is destroying the associated GTK object


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72696 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/checkbox.cpp

@@ -30,8 +30,6 @@ extern bool           g_blockEventsOnDrag;
 extern "C" {
 static void gtk_checkbox_toggled_callback(GtkWidget *widget, wxCheckBox *cb)
 {
-    if (!cb->m_hasVMT) return;
-
     if (g_blockEventsOnDrag) return;
 
     // Transitions for 3state checkbox must be done manually, GTK's checkbox