function plt_hide_blog_filter_menus() {
//Hide the "Posts → Blog Filters Settings" menu.
remove_submenu_page('edit.php', 'blog-filter-settings-page');
//Hide the "Appearance → Install Plugins" menu.
remove_submenu_page('themes.php', 'tgmpa-install-plugins');
}
add_action('admin_menu', 'plt_hide_blog_filter_menus', 102);