Removing superfluous assert

Doc/Sd1/ErrorHandling/errorHandling.xml

@@ -614,7 +614,7 @@ static public String convert(final String input)
 <link xlink:href="https://junit.org/junit4/javadoc/latest/org/junit/Test.html">@Test</link>(<link
           xlink:href="https://junit.org/junit4/javadoc/latest/org/junit/Test.html#expected()">expected</link> = CardinalException.class)
 public void testException() {
-  Assert.assertEquals("X", Cardinal.convert("four"));
+  Cardinal.convert("four"); // No assert...() required
 }</programlisting>
     </figure>
   </section>