Fix typos and remove unneeded code

Author: liu-samuel

app/javascript/components/settings-help-menu-form/index.jsx

@@ -30,7 +30,7 @@ const HelpMenuTab = ({ initialValues, initialDropdownValues }) => {
           ...data,
           isLoading: false,
         });
-        add_flash(__('Storing the custom help menu configuration was not successful.'), 'failure');
+        add_flash(__('Storing the custom help menu configuration was not successful.'), 'error');
         window.location.reload();
       });
       setData({ ...data, isLoading: false });

config/routes.rb

@@ -2444,7 +2444,6 @@
         forest_delete
         forest_form_field_changed
         forest_select
-        help_menu_form_field_changed
         label_tag_mapping_delete
         label_tag_mapping_edit
         label_tag_mapping_update