Doing some cleanup.

third_party/docbook-xsl-1.78.0/params/keyboard.nav.xml

Index: third_party/docbook-xsl-1.78.0/params/keyboard.nav.xml
diff --git a/third_party/docbook-xsl-1.78.0/params/keyboard.nav.xml b/third_party/docbook-xsl-1.78.0/params/keyboard.nav.xml
deleted file mode 100644
index 49b0c0b597e7ccfb7caf11fefcb6d984cc2987a1..0000000000000000000000000000000000000000
--- a/third_party/docbook-xsl-1.78.0/params/keyboard.nav.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="keyboard.nav">
-<refmeta>
-<refentrytitle>keyboard.nav</refentrytitle>
-<refmiscinfo class="other" otherclass="datatype">boolean</refmiscinfo>
-</refmeta>
-<refnamediv>
-<refname>keyboard.nav</refname>
-<refpurpose>Enable keyboard navigation?</refpurpose>
-</refnamediv>
-
-<refsynopsisdiv>
-<src:fragment xml:id="keyboard.nav.frag">
-<xsl:param name="keyboard.nav" select="1"/>
-</src:fragment>
-</refsynopsisdiv>
-
-<refsection><info><title>Description</title></info>
-
-<para>If non-zero, JavaScript is added to the slides to enable keyboard
-navigation. Pressing 'n', space, or return moves forward; pressing 'p' moves
-backward.</para>
-
-</refsection>
-</refentry>