Deleted unused code

client/src/serviceWorker.js

@@ -1,23 +1,11 @@
-// This optional code is used to register a service worker.
-// register() is not called by default.
-
-// This lets the app load faster on subsequent visits in production, and gives
-// it offline capabilities. However, it also means that developers (and users)
-// will only see deployed updates on subsequent visits to a page, after all the
-// existing tabs open on the page have been closed, since previously cached
-// resources are updated in the background.
-
-// To learn more about the benefits of this model and instructions on how to
-// opt-in, read https://bit.ly/CRA-PWA
-
 const isLocalhost = Boolean(
   window.location.hostname === 'localhost' ||
-    // [::1] is the IPv6 localhost address.
-    window.location.hostname === '[::1]' ||
-    // 127.0.0.0/8 are considered localhost for IPv4.
-    window.location.hostname.match(
-      /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
-    )
+  // [::1] is the IPv6 localhost address.
+  window.location.hostname === '[::1]' ||
+  // 127.0.0.0/8 are considered localhost for IPv4.
+  window.location.hostname.match(
+    /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
+  )
 );
 
 export function register(config) {
@@ -43,7 +31,7 @@ export function register(config) {
         navigator.serviceWorker.ready.then(() => {
           console.log(
             'This web app is being served cache-first by a service ' +
-              'worker. To learn more, visit https://bit.ly/CRA-PWA'
+            'worker. To learn more, visit https://bit.ly/CRA-PWA'
           );
         });
       } else {
@@ -71,7 +59,7 @@ function registerValidSW(swUrl, config) {
               // content until all client tabs are closed.
               console.log(
                 'New content is available and will be used when all ' +
-                  'tabs for this page are closed. See https://bit.ly/CRA-PWA.'
+                'tabs for this page are closed. See https://bit.ly/CRA-PWA.'
               );
 
               // Execute callback