How to Hide Dam Spam Admin Menus

function plt_hide_dam_spam_menus() {
	//Hide "Dam Spam".
	remove_menu_page('dam-spam');
	//Hide "Dam Spam → Summary".
	remove_submenu_page('dam-spam', 'dam-spam');
	//Hide "Dam Spam → Protections".
	remove_submenu_page('dam-spam', 'dam-spam-protections');
	//Hide "Dam Spam → Allowed".
	remove_submenu_page('dam-spam', 'dam-spam-allowed');
	//Hide "Dam Spam → Blocked".
	remove_submenu_page('dam-spam', 'dam-spam-blocked');
	//Hide "Dam Spam → Challenges".
	remove_submenu_page('dam-spam', 'dam-spam-challenges');
	//Hide "Dam Spam → APIs".
	remove_submenu_page('dam-spam', 'dam-spam-apis');
	//Hide "Dam Spam → Cache".
	remove_submenu_page('dam-spam', 'dam-spam-cache');
	//Hide "Dam Spam → Logs".
	remove_submenu_page('dam-spam', 'dam-spam-logs');
	//Hide "Dam Spam → Testing".
	remove_submenu_page('dam-spam', 'dam-spam-testing');
	//Hide "Dam Spam → Cleanup".
	remove_submenu_page('dam-spam', 'dam-spam-cleanup');
	//Hide "Dam Spam → Advanced".
	remove_submenu_page('dam-spam', 'dam-spam-advanced');
}

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

Where do I put this code?