MB-24364: Remove the classic-ui link
MB-24364: Remove the classic-ui link

There are a fair amount of issues right now in the classic ui with
all of the new features being added. As a result we won't advertise
the classic ui in the new Spock UI, but we will add some information
about how to access it in our documentation.

Change-Id: I95b448aef803adae33f8151c04d928aa24c28319
Reviewed-on: http://review.couchbase.org/78088
Tested-by: Michael Wiederhold <a17fed27eaa842282862ff7c1b9c8395a26ac320@couchbase.com>
Reviewed-by: Dave Finlay <7b10a9ed9f70e64c30b07607a671ae61c33f14c8@couchbase.com>

membase/ns_server,membase/ns_server,membase/ns_server,membase/ns_server,membase/ns_server,membase/ns_server