Doing some cleanup.

third_party/docbook-xsl-1.78.0/params/nominal.image.width.xml

Index: third_party/docbook-xsl-1.78.0/params/nominal.image.width.xml
diff --git a/third_party/docbook-xsl-1.78.0/params/nominal.image.width.xml b/third_party/docbook-xsl-1.78.0/params/nominal.image.width.xml
deleted file mode 100644
index bfa989a2c87241c42b3eb127af76e685ef019ec0..0000000000000000000000000000000000000000
--- a/third_party/docbook-xsl-1.78.0/params/nominal.image.width.xml
+++ /dev/null
@@ -1,43 +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="nominal.image.width">
-<refmeta>
-<refentrytitle>nominal.image.width</refentrytitle>
-<refmiscinfo class="other" otherclass="datatype">length</refmiscinfo>
-</refmeta>
-<refnamediv>
-<refname>nominal.image.width</refname>
-<refpurpose>The nominal image width</refpurpose>
-</refnamediv>
-
-<refsynopsisdiv>
-<src:fragment xml:id="nominal.image.width.frag">
-<xsl:param name="nominal.image.width" select="6 * $pixels.per.inch"/>
-</src:fragment>
-</refsynopsisdiv>
-
-<refsection><info><title>Description</title></info>
-
-<para>Graphic widths expressed as a percentage are problematic. In the
-following discussion, we speak of width and contentwidth, but
-the same issues apply to depth and contentdepth.</para>
-
-<para>A width of 50% means "half of the available space for the image."
-That's fine. But note that in HTML, this is a dynamic property and
-the image size will vary if the browser window is resized.</para>
-
-<para>A contentwidth of 50% means "half of the actual image width".
-But what does that mean if the stylesheets cannot assess the image's
-actual size? Treating this as a width of 50% is one possibility, but
-it produces behavior (dynamic scaling) that seems entirely out of
-character with the meaning.</para>
-
-<para>Instead, the stylesheets define a
-<parameter>nominal.image.width</parameter> and convert percentages to
-actual values based on that nominal size.</para>
-
-</refsection>
-</refentry>