Doing some cleanup.

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

Index: third_party/docbook-xsl-1.78.0/params/callout.graphics.extension.xml
diff --git a/third_party/docbook-xsl-1.78.0/params/callout.graphics.extension.xml b/third_party/docbook-xsl-1.78.0/params/callout.graphics.extension.xml
deleted file mode 100644
index febc6901d6254ec4540f2927f20a8aa43539163c..0000000000000000000000000000000000000000
--- a/third_party/docbook-xsl-1.78.0/params/callout.graphics.extension.xml
+++ /dev/null
@@ -1,33 +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="callout.graphics.extension">
-<refmeta>
-<refentrytitle>callout.graphics.extension</refentrytitle>
-<refmiscinfo class="other" otherclass="datatype">string</refmiscinfo>
-</refmeta>
-<refnamediv>
-<refname>callout.graphics.extension</refname>
-<refpurpose>Filename extension for callout graphics</refpurpose>
-</refnamediv>
-
-<refsynopsisdiv>
-<src:fragment xml:id="callout.graphics.extension.frag">
-<xsl:param condition="html" name="callout.graphics.extension">.png</xsl:param>
-<xsl:param condition="fo" name="callout.graphics.extension">.svg</xsl:param>
-</src:fragment>
-</refsynopsisdiv>
-
-<refsection><info><title>Description</title></info>
-<para>Sets the filename extension to use on callout graphics. </para>
-
-<itemizedlist>
-<para>The Docbook XSL distribution provides callout graphics in the following formats:</para>
-<listitem><para>SVG (extension: <filename class="extension">.svg</filename>)</para></listitem>
-<listitem><para>PNG (extension: <filename class="extension">.png</filename>)</para></listitem>
-<listitem><para>GIF (extension: <filename class="extension">.gif</filename>)</para></listitem>
-</itemizedlist>
-</refsection>
-</refentry>