If you wish to delete an ical feed

1) log into your account

2) select my properties

3) find the property you want to add the calendar for and select the edit button

4) Select the Calendar tab

5) Below the calendar you will see it says ical feed, and you will see your calendar entries and the Ical feed " a1 test"

6) In the grey box under the feed it says delete imported dates, select this. The calendar feed will then be deleted

7) select save and then exit the property.