Revert "[0.66] Flatlist keyboard navigation: Mouse can move selection (#1269)"

This reverts commit 6496462.

Author: chiuam

Libraries/Lists/FlatList.js

@@ -369,19 +369,6 @@ class FlatList<ItemT> extends React.PureComponent<Props<ItemT>, void> {
     }
   }
 
-  // [TODO(macOS GH#750)
-  /**
-   * Move selection to the specified index
-   *
-   * @platform macos
-   */
-  selectRowAtIndex(index: number) {
-    if (this._listRef) {
-      this._listRef.selectRowAtIndex(index);
-    }
-  }
-  // ]TODO(macOS GH#750)
-
   /**
    * Provides a handle to the underlying scroll responder.
    */

Libraries/Lists/VirtualizedList.js

@@ -592,10 +592,6 @@ class VirtualizedList extends React.PureComponent<Props, State> {
       this.scrollToOffset({offset: newOffset});
     }
   }
-
-  selectRowAtIndex(rowIndex: number) {
-    this._selectRowAtIndex(rowIndex);
-  }
   // ]TODO(macOS GH#774)
 
   recordInteraction() {

packages/rn-tester/js/examples/FlatList/FlatListExample.js

@@ -61,7 +61,7 @@ type State = {|
   fadingEdgeLength: number,
   onPressDisabled: boolean,
   textSelectable: boolean,
-  enableSelectionOnKeyPress: boolean, // TODO(macOS GH#774)
+  enableSelectionOnKeyPress: boolean, // TODO(macOS GH#774)]
 |};
 
 class FlatListExample extends React.PureComponent<Props, State> {
@@ -303,10 +303,6 @@ class FlatListExample extends React.PureComponent<Props, State> {
   _pressItem = (key: string) => {
     this._listRef && this._listRef.recordInteraction();
     const index = Number(key);
-    // [TODO(macOS GH#774)
-    if (this.state.enableSelectionOnKeyPress) {
-      this._listRef && this._listRef.selectRowAtIndex(index);
-    } // ]TODO(macOS GH#774)
     const itemState = pressItem(this.state.data[index]);
     this.setState(state => ({
       ...state,