remove edit button from servers details

Change-Id: Ieecd0bd74eaef741d0baf6d297e7b4a6e7f9b012
Reviewed-on: http://review.couchbase.org/39605
Tested-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Reviewed-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>