How to Hide Axeptio Admin Menus

function plt_hide_axeptio_sdk_integration_menus() {
	//Hide the "Axeptio" menu.
	remove_menu_page('axeptio-wordpress-plugin');
	//Hide the "Axeptio → Settings" menu.
	remove_submenu_page('axeptio-wordpress-plugin', 'axeptio-wordpress-plugin');
	//Hide the "Axeptio → Plugin manager" menu.
	remove_submenu_page('axeptio-wordpress-plugin', 'axeptio-plugin-manager');
}

add_action('admin_menu', 'plt_hide_axeptio_sdk_integration_menus', 91);

Where do I put this code?