Remove unused prototype get_bucket_id
Remove unused prototype get_bucket_id

Change-Id: If3a4735820310f3a6b381b0666643ecab9486712
Reviewed-on: http://review.couchbase.org/99737
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Jim Walker <1cd02e31b43620d7c664e038ca42a060d61727b9@couchbase.com>

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