a11y java tests: Drop/update obsolete comment

The comment was documenting the earlier implementation,
but is no longer accurate/up to date after that was
changed in

    commit f708e783ca
    Author: Rüdiger Timm <rt@openoffice.org>
    Date:   Mon Sep 8 12:01:00 2003 +0000

        INTEGRATION: CWS qadev11 (1.3.14); FILE MERGED
        2003/09/03 15:29:47 sw 1.3.14.1: #112049#

. Adjust the comment/doc accordingly.

Change-Id: I7bd4c9f97fa1e6013e0f2be933fac1c87b9e1a2f
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/210024
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
Tested-by: Jenkins

qadevOOo/tests/java/mod/_toolkit/AccessibleMenuSeparator.java

@@ -65,9 +65,7 @@ public class AccessibleMenuSeparator extends TestCase {
     private static XMultiServiceFactory msf = null;
 
     /**
-     * Finds first accessible component with role <code>SEPARATOR</code>
-     * and implementation name <code>AccessibleMenuSeparator</code>
-     * walking through the accessible component tree of a document.
+     * Finds accessible menu separator.
      */
     @Override
     protected TestEnvironment createTestEnvironment(TestParameters Param,
@@ -138,4 +136,4 @@ public class AccessibleMenuSeparator extends TestCase {
     protected void cleanup(TestParameters Param, PrintWriter log) {
         util.DesktopTools.closeDoc(xTextDoc);
     }
-}
+}