How to Hide Uncanny Toolkit for LearnDash Admin Menus

function plt_hide_uncanny_learndash_toolkit_menus() {
	//Hide "Uncanny Toolkit".
	remove_menu_page('uncanny-toolkit');
	//Hide "Uncanny Toolkit → Modules".
	remove_submenu_page('uncanny-toolkit', 'uncanny-toolkit');
	//Hide "Uncanny Toolkit → Upgrade to Pro".
	remove_submenu_page('uncanny-toolkit', 'https://www.uncannyowl.com/downloads/uncanny-learndash-toolkit-pro/?utm_source=uncanny_toolkit&utm_medium=plugins_page&utm_content=update_to_pro');
	//Hide "Uncanny Toolkit → Automation".
	remove_submenu_page('uncanny-toolkit', 'install-automator');
	//Hide "Uncanny Toolkit → Help".
	remove_submenu_page('uncanny-toolkit', 'uncanny-toolkit-kb');
	//Hide "Uncanny Toolkit → LearnDash Plugins".
	remove_submenu_page('uncanny-toolkit', 'uncanny-toolkit-plugins');
}

add_action('admin_menu', 'plt_hide_uncanny_learndash_toolkit_menus', 100);
Where do I put this code?