[DOCS] Remove outdated SSL info
[DOCS] Remove outdated SSL info

Original commit: elastic/x-pack-elasticsearch@502ad925fc5cbf7427153a44e8a42721c43b122f

vroyer/elassandra,strapdata/elassandra,vroyer/elassandra,strapdata/elassandra,strapdata/elassandra,vroyer/elassandra,strapdata/elassandra,strapdata/elassandra