Removes unused vars from moderatemuc.js. and fixes jshint warnings.

moderatemuc.js

@@ -1,16 +1,9 @@
+/* global $, $iq, config, connection, Strophe, toggleAudio */
 /**
  * Moderate connection plugin.
  */
 Strophe.addConnectionPlugin('moderate', {
     connection: null,
-    roomjid: null,
-    myroomjid: null,
-    members: {},
-    list_members: [], // so we can elect a new focus
-    presMap: {},
-    preziMap: {},
-    joined: false,
-    isOwner: false,
     init: function (conn) {
         this.connection = conn;