Purging outdated REST Chapter

Doc/Sda2/jax-rs.xml

-<?xml version="1.0" encoding="UTF-8"?>
-<chapter version="5.1" xml:id="jax-rs" 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>REST applications based on <xref linkend="glo_Java"/>-rs</title>
-
-  <figure xml:id="sda2FigJaxRS">
-    <title>Basics on Jax-RS</title>
-
-    <mediaobject>
-      <imageobject>
-        <imagedata fileref="Ref/Fig/jaxRs.svg"/>
-      </imageobject>
-    </mediaobject>
-  </figure>
-
-  <para>Sample chapters from <xref linkend="bib_Burke13"/> available at <uri
-  xlink:href="https://github.com/oreillymedia/restful_java_jax-rs_2_0">https://github.com/oreillymedia/restful_java_jax-rs_2_0</uri>.</para>
-</chapter>

Doc/lectures.xml

@@ -159,14 +159,13 @@
         <title>Past SDA1 examinations</title>
 
         <xi:include href="Sda1/Exam/2019/Summer/exam.xml"
-		xpointer="element(/1)"/>
+                    xpointer="element(/1)"/>
 
         <xi:include href="Sda1/Exam/2019/Winter/Solve/Doc/tasks.xml"
-		xpointer="element(/1)"/>
-
-	<xi:include href="Sda1/Exam/2020/Summer/Solve/Doc/tasks.xml"
-		xpointer="element(/1)"/>
+                    xpointer="element(/1)"/>
 
+        <xi:include href="Sda1/Exam/2020/Summer/Solve/Doc/tasks.xml"
+                    xpointer="element(/1)"/>
       </section>
     </appendix>
   </part>
@@ -189,8 +188,6 @@
     <xi:include href="Sda2/ldap.xml" xpointer="element(/1)"/>
 
     <xi:include href="Sda2/jpa.xml" xpointer="element(/1)"/>
-
-    <xi:include href="Sda2/jax-rs.xml" xpointer="element(/1)"/>
   </part>
 
   <part annotations="forumId=13;" xml:id="sdi">