[UWMOODLE-561] removing example block comment

lib.php

@@ -79,29 +79,6 @@ function local_archive_extends_settings_navigation($settingsnav, $context){
             $courseadmin->add_node($defaultimport, 'publish');
         }
     }
-
-    /*
-
-    if($courseadmin = $settingsnav->find('courseadmin', navigation_node::TYPE_SETTING)){
-
-        $linktext = get_string('pluginname', 'local_merge_users');
-        $url = new moodle_url('/local/merge_users/index.php');
-        $munode = navigation_node::create(
-            $linktext,
-            $url,
-            navigation_node::NODETYPE_LEAF,
-            'local_merge_users',
-            'local_merge_users',
-            new pix_icon('i/settings', $linktext)
-        );
-        if($PAGE->url->compare($url, URL_MATCH_BASE)) {
-            $munode->make_active();
-        }
-        $useraccountsnode->add_node($munode);
-    }
-    */
-
-
 }