Memory leak in remote events

Description

A memory leak has been found in the event system. It can be identified in memory dumps by a number of
System.Collections.Generic.LinkedList<EPiServer.Events.Providers.EventSequence> instances with a very high Count. Each LinkedList should not contain items older events than (the default setting) 5 seconds.

Each item in the list is rather small but the list will continue to grow indefinitely.