Removes unused files.

app.js

                             }
                         }
                     });
-                    trackUsage('iceConnected', metadata);
                 }
             });
         }

libs/modules/RTC.bundle.js

     var cb = function (stream) {
         console.log('got', stream, stream.getAudioTracks().length, stream.getVideoTracks().length);
         self.handleLocalStream(stream);
-        trackUsage('localMedia', {
-            audio: stream.getAudioTracks().length,
-            video: stream.getVideoTracks().length
-        });
     };
     var self = this;
     this.getUserMediaWithConstraints(
                 cb,
                 function (error) {
                     console.error('failed to obtain audio/video stream - stop', error);
-                    trackUsage('localMediaError', {
-                        media: error.media || 'video',
-                        name : error.name
-                    });
                     UI.messageHandler.showError("Error",
                             "Failed to obtain permissions to use the local microphone" +
                             "and/or camera.");

media_stream.js

-/**
- * Provides a wrapper class for the MediaStream.
- * 
- * TODO : Add here the src from the video element and other related properties
- * and get rid of some of the mappings that we use throughout the UI.
- */
-var MediaStream = (function() {
-    /**
-     * Creates a MediaStream object for the given data, session id and ssrc.
-     *
-     * @param data the data object from which we obtain the stream,
-     * the peerjid, etc.
-     * @param sid the session id
-     * @param ssrc the ssrc corresponding to this MediaStream
-     *
-     * @constructor
-     */
-    function MediaStreamProto(data, sid, ssrc) {
-        this.stream = data.stream;
-        this.peerjid = data.peerjid;
-        this.ssrc = ssrc;
-        this.session = connection.jingle.sessions[sid];
-        this.type = (this.stream.getVideoTracks().length > 0)
-                    ? MediaStream.VIDEO_TYPE : MediaStream.AUDIO_TYPE;
-        this.muted = false;
-    }
-
-    return MediaStreamProto;
-})();
-
-MediaStream.VIDEO_TYPE = 'Video';
-MediaStream.AUDIO_TYPE = 'Audio';

modules/RTC/RTCUtils.js

     var cb = function (stream) {
         console.log('got', stream, stream.getAudioTracks().length, stream.getVideoTracks().length);
         self.handleLocalStream(stream);
-        trackUsage('localMedia', {
-            audio: stream.getAudioTracks().length,
-            video: stream.getVideoTracks().length
-        });
     };
     var self = this;
     this.getUserMediaWithConstraints(
                 cb,
                 function (error) {
                     console.error('failed to obtain audio/video stream - stop', error);
-                    trackUsage('localMediaError', {
-                        media: error.media || 'video',
-                        name : error.name
-                    });
                     UI.messageHandler.showError("Error",
                             "Failed to obtain permissions to use the local microphone" +
                             "and/or camera.");

tracking.js

-(function () {
-
-function trackUsage(eventname, obj) {
-    //console.log('track', eventname, obj);
-    // implement your own tracking mechanism here
-}
-if (typeof exports !== 'undefined') {
-    module.exports = trackUsage;
-} else {
-    window.trackUsage = trackUsage;
-}
-
-})();