SOLR-4604: UpdateLog#init is over called on SolrCore#reload


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1457647 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4604: remove previous init code

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1457649 13f79535-47bb-0310-9956-ffa450edef68