Doing some cleanup.

third_party/docbook-xsl-1.78.0/params/points.per.em.xml

Index: third_party/docbook-xsl-1.78.0/params/points.per.em.xml
diff --git a/third_party/docbook-xsl-1.78.0/params/points.per.em.xml b/third_party/docbook-xsl-1.78.0/params/points.per.em.xml
deleted file mode 100644
index 76bd22e8a3cb8bb68cd7b494c5a10b7581477508..0000000000000000000000000000000000000000
--- a/third_party/docbook-xsl-1.78.0/params/points.per.em.xml
+++ /dev/null
@@ -1,29 +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="points.per.em">
-<refmeta>
-<refentrytitle>points.per.em</refentrytitle>
-<refmiscinfo class="other" otherclass="datatype">number</refmiscinfo>
-</refmeta>
-<refnamediv>
-<refname>points.per.em</refname>
-<refpurpose>Specify the nominal size of an em-space in points</refpurpose>
-</refnamediv>
-
-<refsynopsisdiv>
-<src:fragment xml:id="points.per.em.frag">
-<xsl:param name="points.per.em">10</xsl:param>
-</src:fragment>
-</refsynopsisdiv>
-
-<refsection><info><title>Description</title></info>
-
-<para>The fixed value used for calculations based upon the size of a
-character. The assumption made is that ten point font is in use. This
-assumption may not be valid.</para>
-
-</refsection>
-</refentry>