Use the remove_submenu_page function to remove the shortcode menu. Pass the parent menu’s slug and the submenu’s slug as arguments to this function.
Paste the following in your theme’s functions.php
file.
add_action( 'admin_menu', 'remove_short_code_menu' );
function remove_short_code_menu() {
remove_submenu_page(
'CF7DBPluginSubmissions', // $parent_menu_slug
'CF7DBPluginShortCodeBuilder' // $submenu_slug
);
}