Remove server worker registration from default templates (facebook#9349)

Author: iansu

packages/cra-template-typescript/template/src/index.tsx

@@ -2,7 +2,6 @@ import React from 'react';
 import ReactDOM from 'react-dom';
 import './index.css';
 import App from './App';
-import * as serviceWorkerRegistration from './serviceWorkerRegistration';
 import reportWebVitals from './reportWebVitals';
 
 ReactDOM.render(
@@ -12,11 +11,6 @@ ReactDOM.render(
   document.getElementById('root')
 );
 
-// If you want your app to work offline and load faster, you can change
-// unregister() to register() below. Note this comes with some pitfalls.
-// Learn more about service workers: https://cra.link/PWA
-serviceWorkerRegistration.unregister();
-
 // If you want to start measuring performance in your app, pass a function
 // to log results (for example: reportWebVitals(console.log))
 // or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals

packages/cra-template-typescript/template/src/serviceWorkerRegistration.ts

@@ -2,7 +2,6 @@ import React from 'react';
 import ReactDOM from 'react-dom';
 import './index.css';
 import App from './App';
-import * as serviceWorkerRegistration from './serviceWorkerRegistration';
 import reportWebVitals from './reportWebVitals';
 
 ReactDOM.render(
@@ -12,11 +11,6 @@ ReactDOM.render(
   document.getElementById('root')
 );
 
-// If you want your app to work offline and load faster, you can change
-// unregister() to register() below. Note this comes with some pitfalls.
-// Learn more about service workers: https://cra.link/PWA
-serviceWorkerRegistration.unregister();
-
 // If you want to start measuring performance in your app, pass a function
 // to log results (for example: reportWebVitals(console.log))
 // or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals