Removing remaining array skeleton chapter

Doc/Sd1/array.xml

-<?xml version="1.0" encoding="UTF-8"?>
-<chapter version="5.0" xml:id="sd1ArrayI"
-         xmlns="http://docbook.org/ns/docbook"
-         xmlns:xlink="http://www.w3.org/1999/xlink"
-         xmlns:xi="http://www.w3.org/2001/XInclude"
-         xmlns:svg="http://www.w3.org/2000/svg"
-         xmlns:m="http://www.w3.org/1998/Math/MathML"
-         xmlns:html="http://www.w3.org/1999/xhtml"
-         xmlns:db="http://docbook.org/ns/docbook">
-  <title>Arrays</title>
-
-  <section xml:id="sd1PrepStrings">
-    <title>String instances (1.12.)</title>
-
-    <itemizedlist>
-      <listitem>
-        <para>Read the section on <link
-        xlink:href="http://docs.oracle.com/javase/tutorial/essential/environment/cmdLineArgs.html">command
-        line arguments</link> and execute the given examples.</para>
-      </listitem>
-
-      <listitem>
-        <para>Read the <link
-        xlink:href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html">String
-        <xref linkend="glo_API"/></link>. Try to understand methods
-        concerning:</para>
-
-        <itemizedlist>
-          <listitem>
-            <para>Comparing strings lexicographically or testing for equality?
-            How does this relate to the <methodname
-            xlink:href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#equals-java.lang.Object-">equals()</methodname>
-            method you read about in chapter 6 of .</para>
-          </listitem>
-
-          <listitem>
-            <para>Searching for sub strings in a given string i.e. testing,
-            whether e.g. <quote>keeper</quote> is part of
-            <quote>goalkeeper</quote>.</para>
-          </listitem>
-        </itemizedlist>
-      </listitem>
-    </itemizedlist>
-  </section>
-</chapter>

Doc/lectures.xml

@@ -50,8 +50,6 @@
     <xi:include href="Sd1/interfacesAbstractClasses.xml"
                 xpointer="element(/1)"/>
 
-    <xi:include href="Sd1/array.xml" xpointer="element(/1)"/>
-
     <xi:include href="Sd1/identity.xml" xpointer="element(/1)"/>
 
     <xi:include href="Sd1/deployment.xml" xpointer="element(/1)"/>
@@ -107,9 +105,11 @@
     <xi:include href="Sdi/unixIntro.xml" xpointer="element(/1)"/>
 
     <xi:include href="Sdi/package.xml" xpointer="element(/1)"/>
+
     <xi:include href="Sdi/gettingStarted.xml" xpointer="element(/1)"/>
 
     <xi:include href="Sdi/ldap.xml" xpointer="element(/1)"/>
+
     <xi:include href="Sdi/dns.xml" xpointer="element(/1)"/>
 
     <xi:include href="Sdi/apache.xml" xpointer="element(/1)"/>