Doing some cleanup.

third_party/docbook-xsl-1.78.0/params/xep.extensions.xml

Index: third_party/docbook-xsl-1.78.0/params/xep.extensions.xml
diff --git a/third_party/docbook-xsl-1.78.0/params/xep.extensions.xml b/third_party/docbook-xsl-1.78.0/params/xep.extensions.xml
deleted file mode 100644
index 8ac2520159b0eb7e1096669536503779ee222753..0000000000000000000000000000000000000000
--- a/third_party/docbook-xsl-1.78.0/params/xep.extensions.xml
+++ /dev/null
@@ -1,31 +0,0 @@
-<refentry xmlns="http://docbook.org/ns/docbook"
-          xmlns:xlink="http://www.w3.org/1999/xlink"
-          xmlns:xi="http://www.w3.org/2001/XInclude"
-          xmlns:src="http://nwalsh.com/xmlns/litprog/fragment"
-          xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-          version="5.0" xml:id="xep.extensions">
-<refmeta>
-<refentrytitle>xep.extensions</refentrytitle>
-<refmiscinfo class="other" otherclass="datatype">boolean</refmiscinfo>
-</refmeta>
-<refnamediv>
-<refname>xep.extensions</refname>
-<refpurpose>Enable XEP extensions?</refpurpose>
-</refnamediv>
-
-<refsynopsisdiv>
-<src:fragment xml:id="xep.extensions.frag"><xsl:param name="xep.extensions" select="0"/></src:fragment>
-</refsynopsisdiv>
-
-<refsection><info><title>Description</title></info>
-
-<para>If non-zero,
-<link xlink:href="http://www.renderx.com/">XEP</link>
-extensions will be used. XEP extensions consists of PDF bookmarks,
-document information and better index processing.
-</para>
-
-<para>This parameter can also affect which graphics file formats
-are supported</para>
-</refsection>
-</refentry>