The else path will never be taken because callbackToPromise which wraps
this function call will ensure there is always a `done` function.

callbackToPromise ensures there will always be a `done` function.

There is error checking for a plain object at `lib/table.js:63` and
`Query` is meant to be a private interface so this code path will never
be hit.

It is not used because validation id done with Query.validateParams in
`lib/table.js`.

This checking is done in `lib/table.js` so it isn't needed here.

Move use of cellFormat into select test so that query.test.js can be
remove.