diff --git a/build/identity.xsl b/build/identity.xsl
deleted file mode 100644
index caac8f28..00000000
--- a/build/identity.xsl
+++ /dev/null
@@ -1,30 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!--
-
-	identity.xsl
-	
-	Identity transform.
-	
-	Author: Ian A. Young <ian@iay.org.uk>
-
--->
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
-
-	<!--
-		Force UTF-8 encoding for the output.
-	-->
-	<xsl:output omit-xml-declaration="no" method="xml" encoding="UTF-8"/>
-		
-	<!--By default, copy text blocks, comments and attributes unchanged.-->
-	<xsl:template match="text()|comment()|@*">
-		<xsl:copy/>
-	</xsl:template>
-	
-	<!--By default, copy all elements from the input to the output, along with their attributes and contents.-->
-	<xsl:template match="*">
-		<xsl:copy>
-			<xsl:apply-templates select="node()|@*"/>
-		</xsl:copy>
-	</xsl:template>
-	
-</xsl:stylesheet>