Removed method call to RCTRootView::setReactPreferredFocusedView as ... (#21596)
Removed method call to RCTRootView::setReactPreferredFocusedView as ... (#21596)

Summary:
…it doesn't exist (#21593)

Fixes #21593

RCTTVView.m contains a method called `setHasTVPreferredFocus`, where the following function call breaks the build:

      [(RCTRootView *)rootview setReactPreferredFocusedView:self];

`setReactPreferredFocusedView` was formerly part of **RCTRootViewInternal.h** but was removed sometime.
Pull Request resolved: https://github.com/facebook/react-native/pull/21596

Differential Revision: D13761925

Pulled By: cpojer

fbshipit-source-id: be536786d7a8209f3a97b039e17d68d0aa653a0d

facebook/react-native,hammerandchisel/react-native,arthuralee/react-native,hoangpham95/react-native,exponent/react-native,arthuralee/react-native,pandiaraj44/react-native,exponent/react-native,exponentjs/react-native,facebook/react-native,exponentjs/react-native,janicduplessis/react-native,exponent/react-native,hammerandchisel/react-native,hoangpham95/react-native,myntra/react-native,hoangpham95/react-native,javache/react-native,facebook/react-native,facebook/react-native,hoangpham95/react-native,arthuralee/react-native,hoangpham95/react-native,janicduplessis/react-native,exponentjs/react-native,exponentjs/react-native,javache/react-native,facebook/react-native,pandiaraj44/react-native,hammerandchisel/react-native,exponent/react-native,facebook/react-native,pandiaraj44/react-native,myntra/react-native,hoangpham95/react-native,myntra/react-native,pandiaraj44/react-native,exponentjs/react-native,myntra/react-native,janicduplessis/react-native,javache/react-native,janicduplessis/react-native,javache/react-native,hammerandchisel/react-native,myntra/react-native,exponentjs/react-native,javache/react-native,janicduplessis/react-native,pandiaraj44/react-native,pandiaraj44/react-native,facebook/react-native,hammerandchisel/react-native,exponent/react-native,exponent/react-native,myntra/react-native,exponentjs/react-native,pandiaraj44/react-native,janicduplessis/react-native,exponent/react-native,hoangpham95/react-native,hammerandchisel/react-native,myntra/react-native,exponent/react-native,javache/react-native,janicduplessis/react-native,facebook/react-native,exponentjs/react-native,hammerandchisel/react-native,pandiaraj44/react-native,arthuralee/react-native,javache/react-native,janicduplessis/react-native,facebook/react-native,javache/react-native,hammerandchisel/react-native,hoangpham95/react-native,myntra/react-native,javache/react-native,myntra/react-native,arthuralee/react-native