Summary: Ref T11809. These have been replaced with more flexible storage that accommodates a wider range of behaviors, including those in the ICS format and RRULEs.
Test Plan:
- Ran migration.
- Viewed, created, edited events.
- Grepped for all removed names/symbols.
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T11809
Differential Revision: https://secure.phabricator.com/D16789