Remove reference to xml pretty print (which is dead code anyway)

Author: rtreffer

patch/23-strip-unused-xml-transform.patch

@@ -0,0 +1,35 @@
+--- org/jivesoftware/smackx/pubsub/util/XmlUtils.java
++++ org/jivesoftware/smackx/pubsub/util/XmlUtils.java
+@@ -28,32 +28,6 @@ import javax.xml.transform.stream.StreamSource;
+  */
+ public class XmlUtils
+ {
+-	/**
+-	 * 
+-	 * @param header Just a title for the stanza for readability.  Single word no spaces since
+-	 * it is inserted as the root element in the output.
+-	 * @param xml The string to pretty print
+-	 */
+-	static public void prettyPrint(String header, String xml)
+-	{
+-		try
+-		{
+-			Transformer transformer = TransformerFactory.newInstance().newTransformer();
+-			transformer.setOutputProperty(OutputKeys.INDENT, "yes");
+-			transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "3");
+-
+-			if (header != null)
+-			{
+-				xml = "\n<" + header + ">" + xml + "</" + header + '>';
+-			}
+-			transformer.transform(new StreamSource(new StringReader(xml)), new StreamResult(System.out));
+-		}
+-		catch (Exception e)
+-		{
+-			System.out.println("Something wrong with xml in \n---------------\n" + xml + "\n---------------");
+-			e.printStackTrace();
+-		}
+-	}
+ 
+ 	static public void appendAttribute(StringBuilder builder, String att, String value)
+ 	{