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

This reverts commit 529bcdafc8393338707937e3b7b0b3efde669a92.

Change-Id: Ia2ec7c3fe6aed7a27f552d23860ab4488c104f56
Reviewed-on: http://review.membase.org/3418
Tested-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>
Reviewed-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>

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