Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
After re-reading the details that may be the case. It wasn't specified as being an item to be removed. It does pass the current set of tests though - needs more tests and or author feedback.