How to Hide WP ULike Admin Menus

function plt_hide_wp_ulike_menus() {
	//Hide "WP ULike".
	remove_menu_page('wp-ulike-settings');
	//Hide "WP ULike → Configuration".
	remove_submenu_page('wp-ulike-settings', 'wp-ulike-settings#tab=configuration');
	//Hide "WP ULike → Translations".
	remove_submenu_page('wp-ulike-settings', 'wp-ulike-settings#tab=translations');
	//Hide "WP ULike → Developer Tools".
	remove_submenu_page('wp-ulike-settings', 'wp-ulike-settings#tab=developer-tools');
	//Hide "WP ULike → Statistics".
	remove_submenu_page('wp-ulike-settings', 'wp-ulike-statistics');
	//Hide "WP ULike → About".
	remove_submenu_page('wp-ulike-settings', 'wp-ulike-about');
	//Hide "WP ULike → Go Pro".
	remove_submenu_page('wp-ulike-settings', 'wp-ulike-go-pro');
}

add_action('admin_menu', 'plt_hide_wp_ulike_menus', 11);

Where do I put this code?