delete
https://{youraccountname}.api-us1.com/api/3/eventTrackingEvents/
Remove an existing event tracking event (name only).
Returns 200 with an empty body on success. Event tracking must be enabled and the account entitled to custom events (403 otherwise), the name must not be empty (400), and the event must exist (404). API v2 tracking/event/remove reported all of these as 200 with a success flag.
This will only remove the event name. Any contacts that have a value associated with this event name already will still retain that association. Make sure that event tracking is enabled before making this call.