test(slides): fix slides test to remove errors

Author: brandyscarney

ionic/components/slides/test/basic/index.ts

@@ -22,14 +22,13 @@ class MyApp {
 
     this.http.get(baseUrl + '?method=flickr.groups.pools.getPhotos&group_id=1463451@N25&safe_search=1&api_key='
                   + FLICKR_API_KEY + '&nojsoncallback=1&format=json&tags=' + tags)
-       .map(res => res.json())
       .subscribe(data => {
-        this.images = data.photos.photo.slice(0, 20);
+        this.images = data.json().photos.photo.slice(0, 20);
         setTimeout(() => {
           this.slider.update();
         });
     }, (err) => {
-      alert('Unable to load images');
+      console.info('Unable to load images');
       console.error(err);
     })
   }