Remove duplication in ScrollResponder.js | Edward Kim

Summary:
I think this line is a legacy code from `NativeModulesDeprecated`.
Closes https://github.com/facebook/react-native/pull/340
Github Author: Edward Kim <onward.edkim@gmail.com>

Test Plan: Imported from GitHub, without a `Test Plan:` line.

Libraries/Components/ScrollResponder.js

@@ -11,7 +11,6 @@
  */
 'use strict';
 
-var NativeModules = require('NativeModules');
 var NativeModules = require('NativeModules');
 var RCTDeviceEventEmitter = require('RCTDeviceEventEmitter');
 var Subscribable = require('Subscribable');