How to Hide GoDAM Admin Menus

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

	//Hide "GoDAM".
	remove_menu_page('rtgodam');
	//Hide "GoDAM → Dashboard".
	remove_submenu_page('rtgodam', 'rtgodam');
	//Hide "GoDAM → Video Editor".
	remove_submenu_page('rtgodam', 'rtgodam_video_editor');
	//Hide "GoDAM → Analytics".
	remove_submenu_page('rtgodam', 'rtgodam_analytics');
	//Hide "GoDAM → Settings".
	remove_submenu_page('rtgodam', 'rtgodam_settings');
	//Hide "GoDAM → Help".
	remove_submenu_page('rtgodam', 'rtgodam_help');
}

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