MB-10417: allowed to remove the binary document from UI

Change-Id: I134989ff096b5696a6e463eb342cf1f6a857ecf9
Reviewed-on: http://review.couchbase.org/36017
Reviewed-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Tested-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>