remove readability spout

It was broken anyway so hopefully it will not matter.

_docs/website/index.html

@@ -286,10 +286,6 @@ <h2 id="configuration_params">Configuration</h2>
                         <td class="documentation-first-column">use_system_font</td>
                         <td>set use_system_font=1 if you have problems with special characters. Then instead of Open Sans the font Arial will be used.</td>
                     </tr>
-                    <tr>
-                        <td class="documentation-first-column">readability</td>
-                        <td>default API key for all feeds fetched by readability spout. You can also enter the readability API key in the spout parameters for every single feed.</td>
-                    </tr>
                     <tr>
                         <td class="documentation-first-column">allow_public_update_access</td>
                         <td>set allow_public_update_access=1 for allowing public access for /update (anybody can access and start the update job).</td>
@@ -448,7 +444,6 @@ <h2>Extend</h2>
                     <li>heise News with full content</li>
                     <li>golem News with full content</li>
                     <li>MMOSpy News with full content</li>
-                    <li>RSS Feeds with readability</li>
                 </ul>
                 <p>
                     If you want to get the newest entries from your own source (e.g. an IMAP Email Account, Log Files or any data from your own application), you can include a new spout in your selfoss stream by writing just one php class (saved in one php file).

defaults.ini

@@ -29,7 +29,6 @@ auto_collapse=0
 auto_stream_more=1
 anonymizer=
 use_system_font=
-readability=
 share=gtfpde
 wallabag=
 wallabag_version=1

spouts/reddit/reddit2.php

@@ -67,9 +67,6 @@ class reddit2 extends \spouts\spout {
         ]
     ];
 
-    /** @var string the readability api key */
-    private $apiKey = '';
-
     /** @var string the reddit_session cookie */
     private $reddit_session = '';
 
@@ -93,8 +90,6 @@ class reddit2 extends \spouts\spout {
      * @return void
      */
     public function load($params) {
-        $this->apiKey = \F3::get('readability');
-
         if (!empty($params['password']) && !empty($params['username'])) {
             if (function_exists('apc_fetch')) {
                 $this->reddit_session = apc_fetch("{$params['username']}_selfoss_reddit_session");
@@ -265,9 +260,6 @@ public function getContent() {
                 return '<a href="' . $this->getHtmlUrl() . '"><img src="' . preg_replace("/s\./", '.', $this->getImage($response->getBody())) . '"/></a>';
             }
             if ($this->scrape) {
-                if ($contentFromReadability = $this->fetchFromReadability($this->getHtmlUrl())) {
-                    return $contentFromReadability;
-                }
                 if ($contentFromInstapaper = $this->fetchFromInstapaper($this->getHtmlUrl())) {
                     return $contentFromInstapaper;
                 }
@@ -352,31 +344,6 @@ public function getXmlUrl($params) {
         return  'reddit://' . urlencode($params['url']);
     }
 
-    /**
-     * fetch content from readability.com
-     *
-     * @author oxman @github
-     *
-     * @throws \GuzzleHttp\Exception\RequestException When an error is encountered
-     * @throws \RuntimeException if the response body is not in JSON format
-     *
-     * @return string content
-     */
-    private function fetchFromReadability($url) {
-        if (empty($this->apiKey)) {
-            return false;
-        }
-
-        $response = $this->sendRequest('https://readability.com/api/content/v1/parser?token=' . $this->apiKey . '&url=' . urlencode($url));
-
-        $data = $response->json();
-        if (!isset($data['content'])) {
-            return false;
-        }
-
-        return $data['content'];
-    }
-
     /**
      * fetch content from instapaper.com
      *