OPENDJ-2348 PR-96 Remove webstart and netscape support

Gaetan Boismal

13.44.2015 6292beaede500c125091a84263ed7cda454ba299

opendj-server-legacy/src/main/java/org/opends/quicksetup/webstart/WebStartDownloader.java does not exist in tree e8035a3a83d24aa9b183fc0ffd1aec9cb3be4bd6