How to Hide YourPlugins Conditional Cart Notices for WooCommerce Admin Menus

function plt_hide_yourplugins_wc_conditional_cart_notices_menus() {
	//Hide the "YourPlugins" menu.
	remove_menu_page('yourplugins');
	//Hide the "YourPlugins → YourPlugins" menu.
	remove_submenu_page('yourplugins', 'yourplugins');
	//Hide the "YourPlugins → Conditional Cart Notices" menu.
	remove_submenu_page('yourplugins', 'yourplugins-wc-conditional-cart-notices');
}

add_action('admin_menu', 'plt_hide_yourplugins_wc_conditional_cart_notices_menus', 1001);

Where do I put this code?