Hide admin menu for admin users EXCEPT user id 1

Hi,

I would like to hide admin menu for all admin users EXCEPT user id 1. I tried the below code it seems fail,

// Hide admin menu for admin users EXCEPT user id 1
if (current_user_can('administrator') && !$user_id == '1') {

	function hide_menu_admin() {
	/* REMOVE SUB MENU ITEMS*/
	  remove_submenu_page( 'plugins.php', 'plugin-editor.php' ); // Plugin Editor
	  remove_submenu_page( 'themes.php', 'theme-editor.php' ); // Theme Editor	
	}
}
add_action('admin_head', 'hide_menu_admin');

Could you kindly guide me the correct way?

TQ

Melvin