Remove an unwanted enclosing of a variable in list

Change-Id: I2f705c510c49aab6bbc06ed93e683f9d0324e23d
Reviewed-on: http://review.couchbase.org/31662
Reviewed-by: Filipe David Borba Manana <fdmanana@gmail.com>
Tested-by: Filipe David Borba Manana <fdmanana@gmail.com>