OAK-2165: Sporadic test failure of JackrabbitNodeTest#testRenameEventHandling on Windows CI
Avoid using org.apache.jackrabbit.test.api.observation.EventResult, which smells

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1629676 13f79535-47bb-0310-9956-ffa450edef68