Further simplify check in get_selected_tags

Co-authored-by: Kevin <[email protected]>

GTG/gtk/browser/main_window.py

@@ -1468,7 +1468,7 @@ def get_selected_tags(self, nospecial=False):
         if self.tagtreeview:
             taglist = self.tagtreeview.get_selected_nodes()
         # If no selection, we display all
-        if not nospecial and (not taglist):
+        if not nospecial and not taglist:
             taglist = ['gtg-tags-all']
         if nospecial:
             special = ['gtg-tags-all', 'gtg-tags-none',