Back out "Fixed scrollview inset when RN view is embedded in another …

…view"

Summary:
Original commit changeset: fbd72739fb71

Changelog: Back out "[react-native][PR] Fixed scrollview inset when RN view is embedded in another view"

Reviewed By: TheSavior

Differential Revision: D20878607

fbshipit-source-id: 0d77b9fb08c637f7894c399a219a242e472b0700

Libraries/Components/Keyboard/KeyboardAvoidingView.js

@@ -118,28 +118,7 @@ class KeyboardAvoidingView extends React.Component<Props, State> {
 
  _onLayout = (event: ViewLayoutEvent) => {
  this._frame = event.nativeEvent.layout;
-
- let isInitial = !this._initialFrameHeight;
-
- if (this.viewRef.current !== null) {
- // Try to measure inside the window, not the view controller
- this.viewRef.current.measureInWindow((x, y, width, height) => {
- const frame: ViewLayout = {
- x: x,
- y: y,
- width: width,
- height: height,
- };
- this._frame = frame;
-
- if (isInitial) {
- // save the initial frame height, before the keyboard is visible
- this._initialFrameHeight = frame.height;
- }
- });
- }
-
- if (isInitial) {
+ if (!this._initialFrameHeight) {
  // save the initial frame height, before the keyboard is visible
  this._initialFrameHeight = this._frame.height;
  }