Revert adding head method to router (#30710)

This reverts laravel/framework#30646 because it's incomplete and currently breaks the route:list command.

Closes laravel/framework#30708

Router.php

@@ -132,18 +132,6 @@ public function __construct(Dispatcher $events, Container $container = null)
         $this->container = $container ?: new Container;
     }
 
-    /**
-     * Register a new HEAD route with the router.
-     *
-     * @param  string  $uri
-     * @param  \Closure|array|string|callable|null  $action
-     * @return \Illuminate\Routing\Route
-     */
-    public function head($uri, $action = null)
-    {
-        return $this->addRoute('HEAD', $uri, $action);
-    }
-
     /**
      * Register a new GET route with the router.
      *