Removes drag and drop as order is not mantained
Removes drag and drop as order is not mantained

When the user drags and drops the selected item to a different position
we don't persist the position, everything is returned in alphabetical
order.
In order to avoid confusion we decided to remove that functionality.

alphagov/policy-publisher,alphagov/policy-publisher,alphagov/policy-publisher,alphagov/policy-publisher