Code clean up.

app/Http/Controllers/NewUserController.php

@@ -18,7 +18,6 @@
  * You should have received a copy of the GNU General Public License
  * along with Firefly III.  If not, see <http://www.gnu.org/licenses/>.
  */
-
 declare(strict_types=1);
 
 namespace FireflyIII\Http\Controllers;
@@ -32,9 +31,7 @@ use Session;
 use View;
 
 /**
- * Class NewUserController
- *
- * @package FireflyIII\Http\Controllers
+ * Class NewUserController.
  */
 class NewUserController extends Controller
 {
@@ -52,7 +49,6 @@ class NewUserController extends Controller
         );
     }
 
-
     /**
      * @param AccountRepositoryInterface $repository
      *
@@ -90,13 +86,12 @@ class NewUserController extends Controller
         // also store currency preference from input:
         $currency = $currencyRepository->find(intval($request->input('amount_currency_id_bank_balance')));
 
-        if (!is_null($currency->id)) {
+        if (null !== $currency->id) {
             // store currency preference:
             Preferences::set('currencyPreference', $currency->code);
             Preferences::mark();
         }
 
-
         Session::flash('success', strval(trans('firefly.stored_new_accounts_new_user')));
         Preferences::mark();