OPENDJ-3417 Remove several backend-related methods from DirectoryServer class

Nicolas Capponi

03.41.2016 aaf1f09351c43d52009c6b53b93eb153ace8428e

 opendj-server-legacy/src/main/java/org/opends/server/extensions/FIFOEntryCache.java

@@ -600,7 +600,8 @@
  {
    // Determine which backend should be used for the provided base DN.  If
    // there is none, then we don't need to do anything.
    LocalBackend<?> backend = DirectoryServer.getLocalBackend(baseDN);
    LocalBackend<?> backend =
        DirectoryServer.getInstance().getServerContext().getBackendConfigManager().getLocalBackend(baseDN);
    if (backend == null)
    {
      return;