MB-10789: [7] Disabling bloomfilters' use by default

Change-Id: Ib5aab5f45605276b6e0f7dca37e3fcf4ef3c87ce
Reviewed-on: http://review.couchbase.org/42638
Reviewed-by: Chiyoung Seo <chiyoung@couchbase.com>
Tested-by: abhinav dangeti <abhinav@couchbase.com>