Revert "Update index.html"

This reverts commit 5490c77.

Author: delapuente

Assets/WebGLTemplates/WebVR/index.html

@@ -10,7 +10,7 @@
     <title>%UNITY_CUSTOM_NAME% | %UNITY_WEB_NAME%</title>
     <meta name="description" content="%UNITY_CUSTOM_DESCRIPTION%">
     <link rel="icon" href="favicon.ico">
-    <link rel="stylesheet" type="text/css" href="webvr.css">
+    <link rel="stylesheet" type="text/css" href="styles/webvr.css">
     <script src="lib/telemetry.js"></script>
     <script>
       MozillaResearch.telemetry.start({