Remove redundant import from TextInputSharedExamples

Summary:
changelog: [internal]

Fix lint error

Reviewed By: cipolleschi

Differential Revision: D40936194

fbshipit-source-id: 24987f86f1f95d42f978baaa560bfd57381ca5a4

packages/rn-tester/js/examples/TextInput/TextInputSharedExamples.js

@@ -10,8 +10,6 @@
 
 'use strict';
 
-import type {HostComponent} from 'react-native';
-
 const React = require('react');
 
 const {