How to Hide Feedback Admin Menus

function plt_hide_user_feedback_and_ratings_by_social_intents_menus() {
	//Hide the "Settings → Social Intents" menu.
	remove_submenu_page('options-general.php', 'user-feedback-and-ratings-by-social-intents');
	//Hide the "Feedback" menu.
	remove_menu_page('siuf_dashboard');
}

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

Where do I put this code?