Removed web-app feature (not used)

_includes/head.html

@@ -38,8 +38,6 @@
 	  <script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
 	  <script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
 	<![endif]-->
-
-	{% include web-app.html %}
 	
 	{% include color-browser.html %}
 </head>

_includes/web-app.html

@@ -1,18 +0,0 @@
-
-{% if site.web-app-mode %}
-
-  <!-- iOS Web App mode -->
-
-  <meta name="apple-mobile-web-app-capable" content="yes">
-  <link rel="apple-touch-icon" sizes="36x36" href="{{site.baseurl}}{{site.icon-36p}}">
-  <link rel="apple-touch-icon" sizes="48x48" href="{{site.baseurl}}{{site.icon-48p}}">
-  <link rel="apple-touch-icon" sizes="72x72" href="{{site.baseurl}}{{site.icon-72p}}">
-  <link rel="apple-touch-icon" sizes="96x96" href="{{site.baseurl}}{{site.icon-96p}}">
-  <link rel="apple-touch-icon" sizes="144x144" href="{{site.baseurl}}{{site.icon-144p}}">
-  <link rel="apple-touch-icon" sizes="192x192" href="{{site.baseurl}}{{site.icon-192p}}">
-
-  <!-- Android Web App mode -->
-
-  <link rel="manifest" href="{{site.baseurl}}/manifest.json">
-
-{% endif %}