Revert D8683555: [react-native][PR] fix: account for `ListHeaderComponent` length when calculating offset…

Differential Revision:
D8683555

Original commit changeset: 05df7b79c16e

fbshipit-source-id: 6deb14b99fe04e67e264455ff92a5d8c1c2dd406

Libraries/Lists/VirtualizedList.js

@@ -1217,9 +1217,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
   }
 
   _selectOffset(metrics: $ReadOnly<{x: number, y: number}>): number {
-    return (
-      (!this.props.horizontal ? metrics.y : metrics.x) - this._headerLength
-    );
+    return !this.props.horizontal ? metrics.y : metrics.x;
   }
 
   _maybeCallOnEndReached() {