Remove unused `getEvents` function
Remove unused `getEvents` function

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.

It does not appear that this function is used anywhere.

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