Removing duplicate calendars
While I was trying to find ways to fix a calendar sync problem I came across a duplicate calendar in ~/Library/Calendars. As all the folder names are IDs rather than the calendar names I was checking the Info.plist in each folder and found 2 with the same title: "Birthdays"
I have no idea which is the one which shows when I open the Calendar app but since the contents are generated I wonder if it is safe to just delete both folders. In that case would a new Birthdays calendar be created automatically? If so, would I also have to delete the one on my iPhone before syncing?
The Birthdays calendars are only in these two locations (one Mac, one iPhone) as I do not sync via the cloud.
Mac mini, OS X 10.11