Something

<?xml version="1.0"?>
<!DOCTYPE Menu
  PUBLIC '-//freedesktop//DTD Menu 1.0//EN'
  'http://standards.freedesktop.org/menu-spec/menu-1.0.dtd'>
<Menu>
        <Name>Applications</Name>
    <MergeFile type="parent">/etc/xdg/menus/applications.menu</MergeFile>
    <DefaultDirectoryDirs/>
    <DefaultAppDirs/>
    <Include>
        <Not>
            <Filename>startup.desktop</Filename>
        </Not>
    </Include>
</Menu>