MB-9083: Remove unused dbaccess function

Change-Id: I6f1e1f188c00bf235416cc3aa603d001f630224c
Reviewed-on: http://review.couchbase.org/28862
Reviewed-by: Chiyoung Seo <chiyoung.seo@gmail.com>
Tested-by: Chiyoung Seo <chiyoung.seo@gmail.com>