How to Hide PushPull Admin Menus

function plt_hide_pushpull_menus() {
	//Hide "PushPull".
	remove_menu_page('pushpull-settings');
	//Hide "PushPull → Settings".
	remove_submenu_page('pushpull-settings', 'pushpull-settings');
	//Hide "PushPull → Domains".
	remove_submenu_page('pushpull-settings', 'pushpull-domains');
	//Hide "PushPull → Managed Content".
	remove_submenu_page('pushpull-settings', 'pushpull-managed-content');
	//Hide "PushPull → Sync Status".
	remove_submenu_page('pushpull-settings', 'pushpull-local-repository');
	//Hide "PushPull → Audit Log".
	remove_submenu_page('pushpull-settings', 'pushpull-audit-log');
}

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

Where do I put this code?