How to Hide SwiftCloud E-Sign Connector Admin Menus

function plt_hide_electronic_signatures_menus() {
	//Hide "Swift Signature".
	remove_menu_page('ss_control_panel');
	//Hide "Swift Signature → Settings".
	remove_submenu_page('ss_control_panel', 'ss_control_panel');
	//Hide "Swift Signature → Signed Docs".
	remove_submenu_page('ss_control_panel', 'ss_signed_docs');
	//Hide "Swift Signature → Help & Setup".
	remove_submenu_page('ss_control_panel', 'ssign_help_setup');
	//Hide "Swift Signature → Updates & Tips".
	remove_submenu_page('ss_control_panel', 'ssign_dashboard');
}

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

Where do I put this code?