Fixed autocomplete freeze when clearing a large number of rows

src/selectiondialog.cc

@@ -38,10 +38,6 @@ void ListViewText::append(const std::string& value) {
   new_row->set_value(column_record.text, value);
 }
 
-void ListViewText::clear() {
-  list_store->clear();
-}
-
 SelectionDialogBase::SelectionDialogBase(Gtk::TextView& text_view, Glib::RefPtr<Gtk::TextBuffer::Mark> start_mark, bool show_search_entry, bool use_markup): text_view(text_view), 
 list_view_text(use_markup), start_mark(start_mark), show_search_entry(show_search_entry) {
   if(!show_search_entry)
@@ -121,7 +117,6 @@ void SelectionDialogBase::hide() {
   window->hide();
   if(on_hide)
     on_hide();
-  list_view_text.clear();
 }
 
 void SelectionDialogBase::move() {

src/selectiondialog.h

@@ -17,7 +17,6 @@ public:
   bool use_markup;
   ListViewText(bool use_markup);
   void append(const std::string& value);
-  void clear();
 private:
   Glib::RefPtr<Gtk::ListStore> list_store;
   ColumnRecord column_record;