Revert "MB-9974: Deal with several snaphots"

This reverts commit 3ef6870cdc564972867e18928a3b6df037aec643.

Change-Id: Idd2b4919ca8ea8fafb0d805c4046f102edb5d619
Reviewed-on: http://review.couchbase.org/34180
Reviewed-by: Sarath Lakshman <sarath@couchbase.com>
Tested-by: Volker Mische <volker.mische@gmail.com>