events: Remove Event.get_context()

The added context variables seem to be ununused. Remove the method.

mpicms/events/models.py

@@ -90,17 +90,6 @@ def clean(self):
         if self.end and self.end < self.start:
             raise ValidationError({'end_time': 'The end time cannot be before the start time.'})
 
-    def get_context(self, request, *args, **kwargs):
-        context = super().get_context(request, *args, **kwargs)
-
-        events = []
-        for child in self.get_parent().get_children().type(Event).live().specific():
-            events.append(child.get_dict(request))
-
-        context["events"] = json.dumps(events)
-
-        return context
-
     class Meta(object):  # noqa
         ordering = ['start_date']
         verbose_name = _('event')