doc: Remove class DocToc as it's superseded by Data/Tree/Node

refs #4820

modules/doc/library/Doc/DocToc.php

@@ -1,48 +0,0 @@
-<?php
-// {{{ICINGA_LICENSE_HEADER}}}
-// {{{ICINGA_LICENSE_HEADER}}}
-
-namespace Icinga\Module\Doc;
-
-use IteratorAggregate;
-use Icinga\Data\Tree\NodeInterface;
-use Icinga\Data\Tree\TreeIterator;
-
-class DocToc implements NodeInterface, IteratorAggregate
-{
-    protected $children = array();
-
-    protected $value;
-
-    public function __construct($value = null)
-    {
-        $this->value = $value;
-    }
-
-    public function getValue()
-    {
-        return $this->value;
-    }
-
-    public function appendChild($value)
-    {
-        $child = new self($value);
-        $this->children[] = $child;
-        return $child;
-    }
-
-    public function hasChildren()
-    {
-        return ! empty($this->children);
-    }
-
-    public function getChildren()
-    {
-        return $this->children;
-    }
-
-    public function getIterator()
-    {
-        return new TreeIterator($this);
-    }
-}