Remove obsolete stuff

static/plugin_dbui/src/appbase.js

@@ -19,13 +19,6 @@ Ext.namespace('App');
  * Configuration option for all json stores
  */
 
-/**
- * @cfg {String} App.dburl
- * Define the URL of the database router/controller
- * This constants is defined by the server.
- */
-App.dburl = '/' + App.name + '/plugin_dbui/database';
-
 /**
  * @cfg {Boolean} App.withMathJax
  * The plugin plugin MathJax is present