EOL lucene-* libraries having upgraded our tests

Having updated all tests to remove search or move to integration testing via TAS, the Lucene libraries must be removed.

Acceptance Criteria:

• All in-process indexing code has been removed
• Lucene libraries have been removed from the distribution

Notes:

Library references: lucene-analyzers, lucene-analyzers-common, lucene-core, lucene-regex and lucene-snowball. As shown in REPO-482 there are two different version currently in use for lucene-core and lucene-regex.
The node indexer code is called from DbNodeServiceImpl e.g:

        nodeIndexer.indexCreateNode(assocRef);