Remove unused features variable from `getContact`
Remove unused features variable from `getContact`

We are about to start working on surfacing new data around
Events/Interactions/Service Deliveries, so we want to tidy up the code
before starting to make changes.

This commit removes a `features` variable that is no longer used by the
function `getContact`.

uktrade/data-hub-fe-beta2,uktrade/data-hub-frontend,uktrade/data-hub-frontend,uktrade/data-hub-fe-beta2,uktrade/data-hub-frontend