Don't delete destination vbuckets before starting replication
Don't delete destination vbuckets before starting replication

This can cause deleted data to be resurrected if a node is
failed. However, it avoids one path for memory overrun when starting
replication.

Change-Id: I91acd64d6c522303abbaf67ab4d17d2394a3d76a
Reviewed-on: http://review.membase.org/3353
Reviewed-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>
Tested-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>

pavel-blagodov/ns_server,daverigby/ns_server,nimishzynga/ns_server,pavel-blagodov/ns_server,pavel-blagodov/ns_server,daverigby/ns_server,membase/ns_server,nimishzynga/ns_server,vzasade/ns_server,t3rm1n4l/ns_server,nimishzynga/ns_server,t3rm1n4l/ns_server,t3rm1n4l/ns_server,membase/ns_server,ceejatec/ns_server,vzasade/ns_server,nimishzynga/ns_server,ceejatec/ns_server,ceejatec/ns_server,nimishzynga/ns_server,t3rm1n4l/ns_server,daverigby/ns_server,mschoch/ns_server,ceejatec/ns_server,mschoch/ns_server,daverigby/ns_server,vzasade/ns_server,mschoch/ns_server,t3rm1n4l/ns_server,mschoch/ns_server,vzasade/ns_server,pavel-blagodov/ns_server,mschoch/ns_server,ceejatec/ns_server,membase/ns_server,membase/ns_server,nimishzynga/ns_server,membase/ns_server,daverigby/ns_server,membase/ns_server,mschoch/ns_server,ceejatec/ns_server