diff --git a/app/src/main/java/eu/faircode/email/CalendarHelper.java b/app/src/main/java/eu/faircode/email/CalendarHelper.java
index d9741968f4..dbe747b8e5 100644
--- a/app/src/main/java/eu/faircode/email/CalendarHelper.java
+++ b/app/src/main/java/eu/faircode/email/CalendarHelper.java
@@ -32,7 +32,6 @@ import android.text.TextUtils;
 import androidx.preference.PreferenceManager;
 
 import java.text.SimpleDateFormat;
-import java.util.ArrayList;
 import java.util.Calendar;
 import java.util.Date;
 import java.util.List;
@@ -40,9 +39,6 @@ import java.util.TimeZone;
 
 import biweekly.ICalVersion;
 import biweekly.ICalendar;
-import biweekly.component.ICalComponent;
-import biweekly.component.Observance;
-import biweekly.component.StandardTime;
 import biweekly.component.VAlarm;
 import biweekly.component.VEvent;
 import biweekly.io.TimezoneAssignment;
@@ -113,44 +109,6 @@ public class CalendarHelper {
             }
         }
 
-        if (false) {
-            // BEGIN:VCALENDAR
-            // METHOD:REQUEST
-            // PRODID:Microsoft Exchange Server 2010
-            // VERSION:2.0
-            // BEGIN:VTIMEZONE
-            //   TZID:W. Europe Standard Time
-            //   BEGIN:STANDARD
-            //     DTSTART:16010101T030000
-            //     TZOFFSETFROM:+0200
-            //     TZOFFSETTO:+0100
-            //     RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=-1SU;BYMONTH=10
-            //   END:STANDARD
-            //   BEGIN:DAYLIGHT
-            //     DTSTART:16010101T020000
-            //     TZOFFSETFROM:+0100
-            //     TZOFFSETTO:+0200
-            //     RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=-1SU;BYMONTH=3
-            //   END:DAYLIGHT
-            // END:VTIMEZONE
-            // BEGIN:VEVENT
-            //   UID:...
-            //   DTSTART;TZID=W. Europe Standard Time:20231030T100000
-            //   DTEND;TZID=W. Europe Standard Time:20231030T110000
-            //   ...
-            for (TimezoneAssignment assignment : icalendar.getTimezoneInfo().getTimezones()) {
-                for (List<ICalComponent> components : assignment.getComponent().getComponents().getMap().values())
-                    for (ICalComponent component : components) {
-                        RecurrenceRule recurrence = component.getProperty(RecurrenceRule.class);
-                        if (recurrence != null) {
-                            RecurrenceRuleScribe scribe = new RecurrenceRuleScribe();
-                            WriteContext wcontext = new WriteContext(ICalVersion.V2_0, icalendar.getTimezoneInfo(), null);
-                            String rrule = scribe.writeText(recurrence, wcontext);
-                        }
-                    }
-            }
-        }
-
         String organizer = (event.getOrganizer() == null ? null : event.getOrganizer().getEmail());
 
         String summary = (event.getSummary() == null ? null : event.getSummary().getValue());