function plt_hide_dropinblog_menus() {
//Hide the "DropInBlog" menu.
remove_menu_page('dropinblog-settings');
//Hide the "DropInBlog → Settings" menu.
remove_submenu_page('dropinblog-settings', 'dropinblog-settings');
//Hide the "DropInBlog → Manage Posts" menu.
remove_submenu_page('dropinblog-settings', 'https://app.dropinblog.com/posts');
}
add_action('admin_menu', 'plt_hide_dropinblog_menus', 11);