Remove unused materialize icon font

Author: amoshydra

heartrate/index.html

@@ -7,7 +7,6 @@
     <meta charset="utf-8" />
     <meta http-equiv="Content-type" content="text/html; charset=utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
-    <link href="http://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/materialize/0.97.5/css/materialize.min.css">
     <link rel="stylesheet" type="text/css" href="style.css">
 </head>