Remove duplicate import statement

Author: Ali Abdelfattah

InstabugSample/__tests__/instabugUtils.spec.js

@@ -3,7 +3,6 @@
  * @lint-ignore-every XPLATJSCOPYRIGHT1
  */
 
-import 'react-native';
 import { NativeModules, Platform } from 'react-native';
 import '../../jest/mockInstabug';
 import Instabug from 'instabug-reactnative';
@@ -77,4 +76,4 @@ describe('Test global error handler', () => {
     // });
 
 
-});
+});