[DOCS] Cleaned up omitted PRs from release notes
[DOCS] Cleaned up omitted PRs from release notes

Original commit: elastic/x-pack-elasticsearch@99fe8938c8a1a545d2c99ae4b40d5a291d05749b

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