Doing some cleanup.

third_party/docbook-xsl-1.78.0/params/refentry.xref.manvolnum.xml

Index: third_party/docbook-xsl-1.78.0/params/refentry.xref.manvolnum.xml
diff --git a/third_party/docbook-xsl-1.78.0/params/refentry.xref.manvolnum.xml b/third_party/docbook-xsl-1.78.0/params/refentry.xref.manvolnum.xml
deleted file mode 100644
index 56b93b7bba65605c968db55b0c5ddc7fcaac740d..0000000000000000000000000000000000000000
--- a/third_party/docbook-xsl-1.78.0/params/refentry.xref.manvolnum.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="refentry.xref.manvolnum">
-<refmeta>
-<refentrytitle>refentry.xref.manvolnum</refentrytitle>
-<refmiscinfo class="other" otherclass="datatype">boolean</refmiscinfo>
-</refmeta>
-<refnamediv>
-<refname>refentry.xref.manvolnum</refname>
-<refpurpose>Output <tag>manvolnum</tag> as part of 
-<tag>refentry</tag> cross-reference?</refpurpose>
-</refnamediv>
-
-<refsynopsisdiv>
-<src:fragment xml:id="refentry.xref.manvolnum.frag">
-<xsl:param name="refentry.xref.manvolnum" select="1"/>
-</src:fragment>
-</refsynopsisdiv>
-
-<refsection><info><title>Description</title></info>
-
-<para>if non-zero, the <tag>manvolnum</tag> is used when cross-referencing
-<tag>refentry</tag>s, either with <tag>xref</tag>
-or <tag>citerefentry</tag>.
-</para>
-
-</refsection>
-</refentry>