Make HashTable::getLockedBucket*() private
Make HashTable::getLockedBucket*() private

The two HashTable methods getLockedBucket() and
getLockedBucketForHash() are only ever called from other HashTable
methods; as such they don't need to be public.

Change-Id: I1f2bb7b06f22949086cec295fac06beff292ac03
Reviewed-on: http://review.couchbase.org/105590
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Ben Huddleston <6c0d3f0e87b08a8c49786ca528f2c4b1ad3d36f3@couchbase.com>

daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine