Doing some cleanup.

third_party/docbook-xsl-1.78.0/params/pixels.per.inch.xml

Index: third_party/docbook-xsl-1.78.0/params/pixels.per.inch.xml
diff --git a/third_party/docbook-xsl-1.78.0/params/pixels.per.inch.xml b/third_party/docbook-xsl-1.78.0/params/pixels.per.inch.xml
deleted file mode 100644
index 86faff5ce5b86700d13978de3fef3cd0b033f95a..0000000000000000000000000000000000000000
--- a/third_party/docbook-xsl-1.78.0/params/pixels.per.inch.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="pixels.per.inch">
-<refmeta>
-<refentrytitle>pixels.per.inch</refentrytitle>
-<refmiscinfo class="other" otherclass="datatype">integer</refmiscinfo>
-</refmeta>
-<refnamediv>
-<refname>pixels.per.inch</refname>
-<refpurpose>How many pixels are there per inch?</refpurpose>
-</refnamediv>
-
-<refsynopsisdiv>
-<src:fragment xml:id="pixels.per.inch.frag">
-<xsl:param name="pixels.per.inch">90</xsl:param>
-</src:fragment>
-</refsynopsisdiv>
-
-<refsection><info><title>Description</title></info>
-
-<para>When lengths are converted to pixels, this value is used to
-determine the size of a pixel. The default value is taken from the
-<link xlink:href="http://www.w3.org/TR/2004/WD-xsl11-20041216/">XSL
-Recommendation</link>.
-</para>
-
-</refsection>
-</refentry>