Remove unused scrollResponderHandleTerminate from ScrollView

Summary:
This function doesn't exist on the scroll responder so this prop is being set to undefined.

As this is an event, not setting the prop just means that nothing will listen to the event.

Changelog:
[Internal]

Reviewed By: JoshuaGross

Differential Revision: D17795678

fbshipit-source-id: 73f2c125e0868e19258b43e3a053447be3f5e768

Libraries/Components/ScrollView/ScrollView.js

@@ -1138,9 +1138,6 @@ class ScrollView extends React.Component<Props, State> {
  .scrollResponderHandleResponderReject,
  onResponderRelease: this._scrollResponder
  .scrollResponderHandleResponderRelease,
- // $FlowFixMe
- onResponderTerminate: this._scrollResponder
- .scrollResponderHandleTerminate,
  onResponderTerminationRequest: this._scrollResponder
  .scrollResponderHandleTerminationRequest,
  onScrollBeginDrag: this._scrollResponder