feat(statistics) drop support for WiFiStats

JitsiConference.js

@@ -461,7 +461,6 @@ JitsiConference.prototype._init = function(options = {}) {
             enableCallStats,
             roomName: this.options.name,
             applicationName: config.applicationName,
-            getWiFiStatsMethod: config.getWiFiStatsMethod,
             configParams: config.callStatsConfigParams
         });
         Statistics.analytics.addPermanentProperties({

modules/statistics/CallStats.js

@@ -386,20 +386,6 @@ export default class CallStats {
                 undefined,
                 configParams);
 
-            const getWiFiStatsMethod = options.getWiFiStatsMethod;
-
-            if (getWiFiStatsMethod) {
-                CallStats.backend.attachWifiStatsHandler(getWiFiStatsMethod);
-
-                getWiFiStatsMethod().then(result => {
-                    if (result) {
-                        logger.info('Reported wifi addresses:'
-                            , JSON.parse(result).addresses);
-                    }
-                })
-                .catch(() => {});// eslint-disable-line no-empty-function
-            }
-
             return true;
         } catch (e) {
             // The callstats.io API failed to initialize (e.g. because its

modules/statistics/statistics.js

@@ -71,7 +71,6 @@ function _initCallStatsBackend(options) {
         userName: options.userName,
         aliasName: options.aliasName,
         applicationName: options.applicationName,
-        getWiFiStatsMethod: options.getWiFiStatsMethod,
         confID: options.confID,
         siteID: options.siteID,
         configParams: options.configParams