OPENDJ-1848: simplify DatabaseContainer and Storage APIs

Matthew Swift

14.48.2015 7690cb21d051728c5b72a99a2c1cc50f8e907f8e

 opendj-server-legacy/src/main/java/org/opends/server/backends/pluggable/spi/WriteableStorage.java

@@ -41,14 +41,6 @@
  void openTree(TreeName name);

  /**
   * Truncates the tree identified by the provided name. It removes all the records in the tree.
   *
   * @param name
   *          the tree name
   */
  void truncateTree(TreeName name);

  /**
   * Renames the tree from the old to the new name.
   *
   * @param oldName