WriteLoadConstraintDecider: Don't require shard write load to return canRemain=NOT_PREFERRED#137416

nicktindall merged 3 commits intoelastic:mainelastic/elasticsearch:mainfrom

nicktindall:dont_require_shard_write_load_canRemainnicktindall/elasticsearch:dont_require_shard_write_load_canRemainCopy head branch name to clipboard