Doing some cleanup.

third_party/docbook-xsl-1.78.0/params/callout.properties.xml

Index: third_party/docbook-xsl-1.78.0/params/callout.properties.xml
diff --git a/third_party/docbook-xsl-1.78.0/params/callout.properties.xml b/third_party/docbook-xsl-1.78.0/params/callout.properties.xml
deleted file mode 100644
index d50b85f0a7a3ccc04bdc8ead1038c33a3cf74291..0000000000000000000000000000000000000000
--- a/third_party/docbook-xsl-1.78.0/params/callout.properties.xml
+++ /dev/null
@@ -1,23 +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.properties">
-<refmeta>
-<refentrytitle>callout.properties</refentrytitle>
-<refmiscinfo class="other" otherclass="datatype">attribute set</refmiscinfo>
-</refmeta>
-<refnamediv>
-<refname>callout.properties</refname>
-<refpurpose>Properties that apply to the list-item generated by each callout within a calloutlist.</refpurpose>
-</refnamediv>
-
-<refsynopsisdiv>
-<src:fragment xml:id="callout.properties.frag"><xsl:attribute-set name="callout.properties">
-</xsl:attribute-set></src:fragment>
-</refsynopsisdiv>
-<refsection><info><title>Description</title></info>
-<para>Properties that apply to the fo:list-item generated by each callout within a calloutlist. Typically used to add spacing properties.</para>
-</refsection>
-</refentry>