How to Hide TotalContest – Lite Admin Menus

function plt_hide_totalcontest_lite_menus() {
	//Hide "Tools → Scheduled Actions".
	remove_submenu_page('tools.php', 'action-scheduler');

	//Hide "TotalContest".
	remove_menu_page('edit.php?post_type=contest');
	//Hide "TotalContest → Dashboard".
	remove_submenu_page('edit.php?post_type=contest', 'edit.php?post_type=contest&page=dashboard');
	//Hide "TotalContest → Contests".
	remove_submenu_page('edit.php?post_type=contest', 'edit.php?post_type=contest');
	//Hide "TotalContest → New Contest".
	remove_submenu_page('edit.php?post_type=contest', 'post-new.php?post_type=contest');
	//Hide "TotalContest → Submissions".
	remove_submenu_page('edit.php?post_type=contest', 'edit.php?post_type=contest_submission');
	//Hide "TotalContest → Logs".
	remove_submenu_page('edit.php?post_type=contest', 'edit.php?post_type=contest&page=log');
	//Hide "TotalContest → Templates".
	remove_submenu_page('edit.php?post_type=contest', 'edit.php?post_type=contest&page=templates');
	//Hide "TotalContest → Extensions".
	remove_submenu_page('edit.php?post_type=contest', 'edit.php?post_type=contest&page=extensions');
	//Hide "TotalContest → Options".
	remove_submenu_page('edit.php?post_type=contest', 'edit.php?post_type=contest&page=options');
	//Hide "TotalContest → Upgrade to Pro".
	remove_submenu_page('edit.php?post_type=contest', 'edit.php?post_type=contest&page=upgrade-to-pro');
	//Hide "TotalContest → Onboarding".
	remove_submenu_page('edit.php?post_type=contest', 'edit.php?post_type=contest&page=onboarding');
}

add_action('admin_menu', 'plt_hide_totalcontest_lite_menus', 11);
Where do I put this code?