remove og app

Author: Rakhim Davletkaliyev

index.html

@@ -14,7 +14,6 @@
         <meta property="og:url" content="http://battle.hexlet.io/">
         <meta property="og:image" content="http://battle.hexlet.io/startup/common-files/img/ogcover.jpg" />
         <meta property="og:description" content="Choose your weapon (programming language), solve coding puzzles faster than your rival and win! You can see your opponent's progress in real time and talk with them and with spectators.">
-        <meta property="fb:app_id" content="">
         <meta property="og:type" content="website">
 
         <link rel="shortcut icon" href="startup/common-files/icons/favicon/favicon.ico" type="image/x-icon" />