dillon1000/react

Remove module pattern function component support (#27742)

The module pattern

```
function MyComponent() {
  return {
    render() {
      return this.state.foo
    }
  }
}
```

has been deprecated for approximately 5 years now. This PR removes
support for this pattern. It also simplifies a number of code paths in
particular related to the concept of `IndeterminateComponent` types.