[lworld] RFR: 8288600: [test] Revert IdentityObject interface change in java.namig test RunBasic

[Roger Riggs]

The removal of the IdentityObject interface needs to be reflected in the ldap test golden files. 
The interface does not appear in serialized objects.

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Commit messages:
 - 8288600: [test] Revert IdentityObject interface change in java.naming test RunBasic

Changes: https://git.openjdk.org/valhalla/pull/715/files
 Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=715&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8288600
  Stats: 139 lines in 2 files changed: 0 ins; 13 del; 126 mod
  Patch: https://git.openjdk.org/valhalla/pull/715.diff
  Fetch: git fetch https://git.openjdk.org/valhalla pull/715/head:pull/715

PR: https://git.openjdk.org/valhalla/pull/715