delete extra bindCancelUpload event

Author: meilixie

demo/js/main.js

@@ -44,14 +44,11 @@ $(function() {
                 if (up.runtime === 'html5' && chunk_size) {
                     progress.setChunkProgess(chunk_size);
                 }
-                progress.bindUploadCancel(up);
             },
             'UploadProgress': function(up, file) {
                 var progress = new FileProgress(file, 'fsUploadProgress');
                 var chunk_size = plupload.parseSize(this.getOption('chunk_size'));
                 progress.setProgress(file.percent + "%", file.speed, chunk_size);
-                progress.bindUploadCancel(up);
-
             },
             'UploadComplete': function() {
                 $('#success').show();