[gnome-shell] calendar: Simplify code a bit

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 2ff7a78b5693973f28b66c31d78b919d56c06650
Author: Florian Müllner <fmuellner gnome org>
Date:   Fri Jul 12 05:25:54 2019 +0200

    calendar: Simplify code a bit
    
    Just make the error case the same as the no-appointments one.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/626

 js/ui/calendar.js | 24 +++++++++++-------------
 1 file changed, 11 insertions(+), 13 deletions(-)
---
diff --git a/js/ui/calendar.js b/js/ui/calendar.js
index 01a56baee..f1a102505 100644
--- a/js/ui/calendar.js
+++ b/js/ui/calendar.js
@@ -237,20 +237,18 @@ var DBusEventSource = class DBusEventSource {
 
     _onEventsReceived(results, error) {
         let newEvents = [];
-        let appointments = results[0] || null;
-        if (appointments != null) {
-            for (let n = 0; n < appointments.length; n++) {
-                let a = appointments[n];
-                let date = new Date(a[4] * 1000);
-                let end = new Date(a[5] * 1000);
-                let id = a[0];
-                let summary = a[1];
-                let allDay = a[3];
-                let event = new CalendarEvent(id, date, end, summary, allDay);
-                newEvents.push(event);
-            }
-            newEvents.sort((ev1, ev2) => ev1.date.getTime() - ev2.date.getTime());
+        let appointments = results[0] || [];
+        for (let n = 0; n < appointments.length; n++) {
+            let a = appointments[n];
+            let date = new Date(a[4] * 1000);
+            let end = new Date(a[5] * 1000);
+            let id = a[0];
+            let summary = a[1];
+            let allDay = a[3];
+            let event = new CalendarEvent(id, date, end, summary, allDay);
+            newEvents.push(event);
         }
+        newEvents.sort((ev1, ev2) => ev1.date.getTime() - ev2.date.getTime());
 
         this._events = newEvents;
         this.isLoading = false;