diff --git a/data/web/corefork.telegram.org/api/masks.html b/data/web/corefork.telegram.org/api/masks.html
deleted file mode 100644
index 5c55aa30cc..0000000000
--- a/data/web/corefork.telegram.org/api/masks.html
+++ /dev/null
@@ -1,120 +0,0 @@
-<!DOCTYPE html>
-<html class="">
-  <head>
-    <meta charset="utf-8">
-    <title>Masks</title>
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta property="description" content=" ">
-    <meta property="og:title" content="Masks">
-    <meta property="og:image" content="">
-    <meta property="og:description" content=" ">
-    <link rel="icon" type="image/svg+xml" href="/img/website_icon.svg?4">
-<link rel="apple-touch-icon" sizes="180x180" href="/img/apple-touch-icon.png">
-<link rel="icon" type="image/png" sizes="32x32" href="/img/favicon-32x32.png">
-<link rel="icon" type="image/png" sizes="16x16" href="/img/favicon-16x16.png">
-<link rel="alternate icon" href="/img/favicon.ico" type="image/x-icon" />
-    <link href="/css/bootstrap.min.css?3" rel="stylesheet">
-    
-    <link href="/css/telegram.css?231" rel="stylesheet" media="screen">
-    <style>
-    </style>
-  </head>
-  <body class="preload">
-    <div class="dev_page_wrap">
-      <div class="dev_page_head navbar navbar-static-top navbar-tg">
-        <div class="navbar-inner">
-          <div class="container clearfix">
-            <ul class="nav navbar-nav navbar-right hidden-xs"><li class="navbar-twitter"><a href="https://twitter.com/telegram" target="_blank" data-track="Follow/Twitter" onclick="trackDlClick(this, event)"><i class="icon icon-twitter"></i><span> Twitter</span></a></li></ul>
-            <ul class="nav navbar-nav">
-              <li><a href="//telegram.org/">Home</a></li>
-<li class="hidden-xs"><a href="//telegram.org/faq">FAQ</a></li>
-<li class="hidden-xs"><a href="//telegram.org/apps">Apps</a></li>
-<li class="active"><a href="/api">API</a></li>
-<li class=""><a href="/mtproto">Protocol</a></li>
-<li class=""><a href="/schema">Schema</a></li>
-            </ul>
-          </div>
-        </div>
-      </div>
-      <div class="container clearfix">
-        <div class="dev_page">
-          <div id="dev_page_content_wrap" class=" ">
-  <div class="dev_page_bread_crumbs"><ul class="breadcrumb clearfix"><li><a  href="/api" >API</a></li><i class="icon icon-breadcrumb-divider"></i><li><a  href="/api/masks" >Masks</a></li></ul></div>
-  <h1 id="dev_page_title">Masks</h1>
-  
-  <div id="dev_page_content"><!-- scroll_nav -->
-
-<p> </p></div>
-  
-</div>
-          
-        </div>
-      </div>
-      <div class="footer_wrap">
-  <div class="footer_columns_wrap footer_desktop">
-    <div class="footer_column footer_column_telegram">
-      <h5>Telegram</h5>
-      <div class="footer_telegram_description"></div>
-      Telegram is a cloud-based mobile and desktop messaging app with a focus on security and speed.
-    </div>
-
-    <div class="footer_column">
-      <h5><a href="//telegram.org/faq">About</a></h5>
-      <ul>
-        <li><a href="//telegram.org/faq">FAQ</a></li>
-        <li><a href="//telegram.org/blog">Blog</a></li>
-        <li><a href="//telegram.org/jobs">Jobs</a></li>
-      </ul>
-    </div>
-    <div class="footer_column">
-      <h5><a href="//telegram.org/apps#mobile-apps">Mobile Apps</a></h5>
-      <ul>
-        <li><a href="//telegram.org/dl/ios">iPhone/iPad</a></li>
-        <li><a href="//telegram.org/dl/android">Android</a></li>
-        <li><a href="//telegram.org/dl/wp">Windows Phone</a></li>
-      </ul>
-    </div>
-    <div class="footer_column">
-      <h5><a href="//telegram.org/apps#desktop-apps">Desktop Apps</a></h5>
-      <ul>
-        <li><a href="//desktop.telegram.org/">PC/Mac/Linux</a></li>
-        <li><a href="//macos.telegram.org/">macOS</a></li>
-        <li><a href="//telegram.org/dl/web">Web-browser</a></li>
-      </ul>
-    </div>
-    <div class="footer_column footer_column_platform">
-      <h5><a href="//core.telegram.org/">Platform</a></h5>
-      <ul>
-        <li><a href="//core.telegram.org/api">API</a></li>
-        <li><a href="//translations.telegram.org/">Translations</a></li>
-        <li><a href="//instantview.telegram.org/">Instant View</a></li>
-      </ul>
-    </div>
-  </div>
-  <div class="footer_columns_wrap footer_mobile">
-    <div class="footer_column">
-      <h5><a href="//telegram.org/faq">About</a></h5>
-    </div>
-    <div class="footer_column">
-      <h5><a href="//telegram.org/blog">Blog</a></h5>
-    </div>
-    <div class="footer_column">
-      <h5><a href="//telegram.org/apps">Apps</a></h5>
-    </div>
-    <div class="footer_column">
-      <h5><a href="//core.telegram.org/">Platform</a></h5>
-    </div>
-    <div class="footer_column">
-      <h5><a href="https://twitter.com/telegram" target="_blank" data-track="Follow/Twitter" onclick="trackDlClick(this, event)">Twitter</a></h5>
-    </div>
-  </div>
-</div>
-    </div>
-    <script src="/js/main.js?46"></script>
-    
-    <script>backToTopInit("Go up");
-removePreloadInit();
-</script>
-  </body>
-</html>
-
