Remove copyright notice - it is now in the notice file.

git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@496307 13f79535-47bb-0310-9956-ffa450edef68

changelog.xsl

@@ -1,6 +1,4 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
-<!-- Copyright (C) 2004 The Apache Software Foundation. All rights reserved. -->
-
 <xsl:stylesheet
     xmlns:xsl='http://www.w3.org/1999/XSL/Transform'
     version='1.0'>