Get rid of silly config.helpFiles.

--HG--
branch : xslt
rename : common/components/chrome-data.js => common/components/protocols.js

common/content/configbase.js

@@ -50,13 +50,6 @@ const configbase = { //{{{
      */
     hostApplication: null,
 
-    /**
-     * @property {[string]} A list of HTML help files available under
-     *     chrome://liberator/locale/. Used to generate help tag indexes for
-     *     the :help command.
-     */
-    helpFiles: [],
-
     /**
      * @property {function} Called on liberator startup to allow for any
      *     arbitrary application-specific initialization code.