fixed new series id in addseries.collection

UI/AddSeries/Collection.js

@@ -5,10 +5,7 @@ define(['app', 'Series/SeriesModel'], function () {
         model: NzbDrone.Series.SeriesModel,
 
         parse: function (response) {
-            _.each(response, function (model) {
-                model.id = undefined;
-            });
-
+            response.id = undefined;
             return response;
         }
     });

UI/AddSeries/Existing/ImportSeriesView.js

@@ -18,11 +18,6 @@ define([
             'click .x-add': 'addSeries'
         },
 
-        initialize: function () {
-            this.model.set('isExisting', true);
-            this.model.set('id', undefined);
-        },
-
         addSeries: function () {
             var icon = this.ui.addButton.find('icon');
             icon.removeClass('icon-plus').addClass('icon-spin icon-spinner disabled');