Doing some cleanup.

third_party/docbook-xsl-1.78.0/params/navig.graphics.extension.xml

Index: third_party/docbook-xsl-1.78.0/params/navig.graphics.extension.xml
diff --git a/third_party/docbook-xsl-1.78.0/params/navig.graphics.extension.xml b/third_party/docbook-xsl-1.78.0/params/navig.graphics.extension.xml
deleted file mode 100644
index 416e0c44a8de42381346f3af47b307ab416e93d6..0000000000000000000000000000000000000000
--- a/third_party/docbook-xsl-1.78.0/params/navig.graphics.extension.xml
+++ /dev/null
@@ -1,28 +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="navig.graphics.extension">
-<refmeta>
-<refentrytitle>navig.graphics.extension</refentrytitle>
-<refmiscinfo class="other" otherclass="datatype">string</refmiscinfo>
-</refmeta>
-<refnamediv>
-<refname>navig.graphics.extension</refname>
-<refpurpose>Extension for navigational graphics</refpurpose>
-</refnamediv>
-
-<refsynopsisdiv>
-<src:fragment xml:id="navig.graphics.extension.frag">
-<xsl:param name="navig.graphics.extension">.gif</xsl:param>
-</src:fragment>
-</refsynopsisdiv>
-
-<refsection><info><title>Description</title></info>
-
-<para>Sets the filename extension to use on navigational graphics used
-in the headers and footers of chunked HTML.</para>
-
-</refsection>
-</refentry>