How to Hide WP SVG Icons Admin Menus

function plt_hide_svg_vector_icon_plugin_menus() {
	//Hide "WP SVG Icons".
	remove_menu_page('wp-svg-icons');
	//Hide "WP SVG Icons → Default Icon Set".
	remove_submenu_page('wp-svg-icons', 'wp-svg-icons');
	//Hide "WP SVG Icons → Custom Icon Set".
	remove_submenu_page('wp-svg-icons', 'wp-svg-icons-custom-set');
	//Hide "WP SVG Icons → Settings".
	remove_submenu_page('wp-svg-icons', 'wp_svg_icons');
	//Hide "WP SVG Icons → Upgrade".
	remove_submenu_page('wp-svg-icons', 'wp-svg-icons-upgrade');
}

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

Where do I put this code?