Doing some cleanup.

third_party/docbook-xsl-1.78.0/params/table.cell.border.thickness.xml

Index: third_party/docbook-xsl-1.78.0/params/table.cell.border.thickness.xml
diff --git a/third_party/docbook-xsl-1.78.0/params/table.cell.border.thickness.xml b/third_party/docbook-xsl-1.78.0/params/table.cell.border.thickness.xml
deleted file mode 100644
index 093e38ed846e162b24e2b4a123a2c98563c09312..0000000000000000000000000000000000000000
--- a/third_party/docbook-xsl-1.78.0/params/table.cell.border.thickness.xml
+++ /dev/null
@@ -1,35 +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="table.cell.border.thickness">
-<refmeta>
-<refentrytitle>table.cell.border.thickness</refentrytitle>
-<refmiscinfo class="other" otherclass="datatype">length</refmiscinfo>
-</refmeta>
-<refnamediv>
-<refname>table.cell.border.thickness</refname>
-<refpurpose>Specifies the thickness of table cell borders</refpurpose>
-</refnamediv>
-
-<refsynopsisdiv>
-<src:fragment xml:id="table.cell.border.thickness.frag">
-<xsl:param name="table.cell.border.thickness">0.5pt</xsl:param>
-</src:fragment>
-</refsynopsisdiv>
-
-<refsection><info><title>Description</title></info>
-
-<para>If non-zero, specifies the thickness of borders on table
-cells. The units are points. See <link
-xlink:href="http://www.w3.org/TR/CSS21/box.html#border-width-properties">
-CSS</link></para>
-
-<note>
-  <para>To control properties of cell borders in HTML output, you must also turn on the 
-  <parameter>table.borders.with.css</parameter> parameter.</para>
-</note>
-
-</refsection>
-</refentry>