[gnote] Do not invoke no longer used signal

[Aurimas Černius <aurimasc src gnome org>]

commit 1dea5ae114e9ce96eb6aea3ebbe8b1937879272a
Author: Aurimas Černius <aurisc4 gmail com>
Date:   Sun Apr 25 15:01:21 2021 +0300

    Do not invoke no longer used signal

 src/plugins/statistics/statisticsapplicationaddin.cpp | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
---
diff --git a/src/plugins/statistics/statisticsapplicationaddin.cpp 
b/src/plugins/statistics/statisticsapplicationaddin.cpp
index 2abb3af1..0d396bc7 100644
--- a/src/plugins/statistics/statisticsapplicationaddin.cpp
+++ b/src/plugins/statistics/statisticsapplicationaddin.cpp
@@ -1,7 +1,7 @@
 /*
  * gnote
  *
- * Copyright (C) 2013,2015,2019 Aurimas Cernius
+ * Copyright (C) 2013,2015,2019,2021 Aurimas Cernius
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -49,7 +49,6 @@ void StatisticsApplicationAddin::initialize()
       "statistics-show", sigc::mem_fun(*this, &StatisticsApplicationAddin::on_show_statistics));
     m_add_menu_item_cid = manager.signal_build_main_window_search_popover
       .connect(sigc::mem_fun(*this, &StatisticsApplicationAddin::add_menu_item));
-    manager.signal_main_window_popover_changed();
   }
 }
 
@@ -58,7 +57,6 @@ void StatisticsApplicationAddin::shutdown()
   auto & manager(ignote().action_manager());
   manager.unregister_main_window_search_callback("statistics-show-cback");
   m_add_menu_item_cid.disconnect();
-  manager.signal_main_window_popover_changed();
   m_initialized = false;
 }