Docs: Converting header and file extension to match actual contents

Bug: 18341319
Change-Id: Iabee9b8fe7c51956ffdd9d43cebd9f8f844514b8
diff --git a/src/compatibility/5.0/android-5.0-cdd.xhtml b/src/compatibility/5.0/android-5.0-cdd.html
similarity index 99%
rename from src/compatibility/5.0/android-5.0-cdd.xhtml
rename to src/compatibility/5.0/android-5.0-cdd.html
index 08a7a4f..27e19ea 100644
--- a/src/compatibility/5.0/android-5.0-cdd.xhtml
+++ b/src/compatibility/5.0/android-5.0-cdd.html
@@ -1,6 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+<!DOCTYPE html>
 <head>
 <title>Android 5.0 Compatibility Definition</title>
 <link rel="stylesheet" type="text/css" href="cdd.css"/>