HBASE-8900 TestRSKilledWhenMasterInitializing.testCorrectnessWhenMasterFailOver is flakey; ACTUALLY REMOVE FILE, WAS BREAKING RAT CHECK

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1504359 13f79535-47bb-0310-9956-ffa450edef68