Pass prod error messages directly to constructor (#17063)

* Remove "Invariant Violation" from dev errors

When I made the change to compile `invariant` to throw expressions, I
left a small runtime to set the error's `name` property to "Invariant
Violation" to maintain the existing behavior.

I think we can remove it. The argument for keeping it is to preserve
continuity in error logs, but this only affects development errors,
anyway: production error messages are replaced with error codes.

* Pass prod error messages directly to constructor

Updates the `invariant` transform to pass an error message string
directly to the Error constructor, instead of mutating the
message property.

Turns this code:

```js
invariant(condition, 'A %s message that contains %s', adj, noun);
```

into this:

```js
if (!condition) {
  throw Error(
    __DEV__
      ? `A ${adj} message that contains ${noun}`
      : formatProdErrorMessage(ERR_CODE, adj, noun)
  );
}
```