Upgrade to Flow 0.201.0

Summary: Changelog: [Internal]

Reviewed By: SamChou19815

Differential Revision: D43772813

fbshipit-source-id: 563c6f3dfb00bc9247ac0505d7f841afad1eb43e

Libraries/Components/DrawerAndroid/DrawerLayoutAndroid.android.js

@@ -238,6 +238,7 @@ class DrawerLayoutAndroid extends React.Component<Props, State> {
    * LTI update could not be added via codemod */
   _onDrawerSlide = event => {
     if (this.props.onDrawerSlide) {
+      // $FlowFixMe[unused-promise]
       this.props.onDrawerSlide(event);
     }
     if (this.props.keyboardDismissMode === 'on-drag') {